212021106 has 32 divisors (see below), whose sum is σ = 463159296. Its totient is φ = 64170000.

The previous prime is 212021099. The next prime is 212021113. The reversal of 212021106 is 601120212.

It is an interprime number because it is at equal distance from previous prime (212021099) and next prime (212021113).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74571 + ... + 77361.

It is an arithmetic number, because the mean of its divisors is an integer number (14473728).

Almost surely, 2^212021106 is an apocalyptic number.

212021106 is an abundant number, since it is smaller than the sum of its proper divisors (251138190).

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

212021106 is a wasteful number, since it uses less digits than its factorization.

212021106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 212021106 is about 14560.9445435384. The cubic root of 212021106 is about 596.2929827625.

Adding to 212021106 its reverse (601120212), we get a palindrome (813141318).

The spelling of 212021106 in words is "two hundred twelve million, twenty-one thousand, one hundred six".