122211122121010 has 96 divisors (see below), whose sum is σ = 251665819840512. Its totient is φ = 42468204026880.

The previous prime is 122211122120987. The next prime is 122211122121029. The reversal of 122211122121010 is 10121221112221.

It is a happy number.

It is a super-2 number, since 2×122211122121010² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1637676559 + ... + 1637751181.

It is an arithmetic number, because the mean of its divisors is an integer number (2621518956672).

Almost surely, 2^{122211122121010} is an apocalyptic number.

122211122121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122211122121010 is an abundant number, since it is smaller than the sum of its proper divisors (129454697719502).

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

122211122121010 is a wasteful number, since it uses less digits than its factorization.

122211122121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118268 (or 118251 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122211122121010 its reverse (10121221112221), we get a palindrome (132332343233231).

The spelling of 122211122121010 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, ten".