1212000022 has 4 divisors (see below), whose sum is σ = 1818000036. Its totient is φ = 606000010.

The previous prime is 1212000017. The next prime is 1212000047. The reversal of 1212000022 is 2200002121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1211999972 and 1212000008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303000004 + ... + 303000007.

It is an arithmetic number, because the mean of its divisors is an integer number (454500009).

Almost surely, 2^1212000022 is an apocalyptic number.

1212000022 is a deficient number, since it is larger than the sum of its proper divisors (606000014).

1212000022 is an equidigital number, since it uses as much as digits as its factorization.

1212000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606000013.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1212000022 is about 34813.7906870252. The cubic root of 1212000022 is about 1066.1890287090.

Adding to 1212000022 its reverse (2200002121), we get a palindrome (3412002143).

The spelling of 1212000022 in words is "one billion, two hundred twelve million, twenty-two", and thus it is an aban number.