210120122212 has 48 divisors (see below), whose sum is σ = 493708828032. Its totient is φ = 75567674880.

The previous prime is 210120122183. The next prime is 210120122221. The reversal of 210120122212 is 212221021012.

It is a happy number.

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, 26234773 + ... + 26242780.

It is an arithmetic number, because the mean of its divisors is an integer number (10285600584).

Almost surely, 2^210120122212 is an apocalyptic number.

210120122212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210120122212 is an abundant number, since it is smaller than the sum of its proper divisors (283588705820).

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

210120122212 is a wasteful number, since it uses less digits than its factorization.

210120122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52477588 (or 52477586 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210120122212 its reverse (212221021012), we get a palindrome (422341143224).

The spelling of 210120122212 in words is "two hundred ten billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twelve".