210122102221212 has 24 divisors (see below), whose sum is σ = 490285261376512. Its totient is φ = 70040649855600.

The previous prime is 210122102221211. The next prime is 210122102221277. The reversal of 210122102221212 is 212122201221012.

It is a super-2 number, since 2×210122102221212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122102221211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13268037 + ... + 24418947.

Almost surely, 2^{210122102221212} is an apocalyptic number.

It is an amenable number.

210122102221212 is an abundant number, since it is smaller than the sum of its proper divisors (280163159155300).

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

210122102221212 is a wasteful number, since it uses less digits than its factorization.

210122102221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12721209 (or 12721207 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 210122102221212 its reverse (212122201221012), we get a palindrome (422244303442224).

The spelling of 210122102221212 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred two million, two hundred twenty-one thousand, two hundred twelve".