2202111212 has 12 divisors (see below), whose sum is σ = 4404222480. Its totient is φ = 943761936.

The previous prime is 2202111209. The next prime is 2202111217. The reversal of 2202111212 is 2121112022.

2202111212 is an admirable number.

It is a super-2 number, since 2×2202111212² = 9698587580032217888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2202111217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39323387 + ... + 39323442.

It is an arithmetic number, because the mean of its divisors is an integer number (367018540).

Almost surely, 2^2202111212 is an apocalyptic number.

It is an amenable number.

2202111212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2202111212 is a wasteful number, since it uses less digits than its factorization.

2202111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78646840 (or 78646838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2202111212 is about 46926.6577970347. The cubic root of 2202111212 is about 1301.0073478213.

Adding to 2202111212 its reverse (2121112022), we get a palindrome (4323223234).

It can be divided in two parts, 22021 and 11212, that added together give a palindrome (33233).

The spelling of 2202111212 in words is "two billion, two hundred two million, one hundred eleven thousand, two hundred twelve".