122001111121212 has 72 divisors (see below), whose sum is σ = 325847831517936. Its totient is φ = 39899734437888.

The previous prime is 122001111121207. The next prime is 122001111121289. The reversal of 122001111121212 is 212121111100221.

It is a happy number.

122001111121212 is a `hidden beast` number, since 1 + 220 + 0 + 1 + 111 + 121 + 212 = 666.

It is a super-2 number, since 2×122001111121212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1184057413 + ... + 1184160444.

It is an arithmetic number, because the mean of its divisors is an integer number (4525664326638).

Almost surely, 2^{122001111121212} is an apocalyptic number.

122001111121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122001111121212 is an abundant number, since it is smaller than the sum of its proper divisors (203846720396724).

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

122001111121212 is a wasteful number, since it uses less digits than its factorization.

122001111121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368217929 (or 2368217915 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122001111121212 its reverse (212121111100221), we get a palindrome (334122222221433).

The spelling of 122001111121212 in words is "one hundred twenty-two trillion, one billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twelve".