122111221120212 has 48 divisors (see below), whose sum is σ = 299938926551040. Its totient is φ = 38559300226272.

The previous prime is 122111221120183. The next prime is 122111221120237. The reversal of 122111221120212 is 212021122111221.

It is a super-2 number, since 2×122111221120212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10723638 + ... + 18953069.

It is an arithmetic number, because the mean of its divisors is an integer number (6248727636480).

Almost surely, 2^{122111221120212} is an apocalyptic number.

122111221120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122111221120212 is an abundant number, since it is smaller than the sum of its proper divisors (177827705430828).

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

122111221120212 is a wasteful number, since it uses less digits than its factorization.

122111221120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29694780 (or 29694778 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122111221120212 its reverse (212021122111221), we get a palindrome (334132343231433).

The spelling of 122111221120212 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty thousand, two hundred twelve".