210210111212 has 12 divisors (see below), whose sum is σ = 368959292520. Its totient is φ = 104793170496.

The previous prime is 210210111193. The next prime is 210210111229. The reversal of 210210111212 is 212111012012.

It is a super-2 number, since 2×210210111212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77969762 + ... + 77972457.

It is an arithmetic number, because the mean of its divisors is an integer number (30746607710).

Almost surely, 2^210210111212 is an apocalyptic number.

It is an amenable number.

210210111212 is a deficient number, since it is larger than the sum of its proper divisors (158749181308).

210210111212 is a wasteful number, since it uses less digits than its factorization.

210210111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155942560 (or 155942558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210210111212 its reverse (212111012012), we get a palindrome (422321123224).

The spelling of 210210111212 in words is "two hundred ten billion, two hundred ten million, one hundred eleven thousand, two hundred twelve".