122121011011212 has 144 divisors (see below), whose sum is σ = 312008373680640. Its totient is φ = 40270874644224.

The previous prime is 122121011011183. The next prime is 122121011011267. The reversal of 122121011011212 is 212110110121221.

It is a happy number.

122121011011212 is a `hidden beast` number, since 1 + 221 + 210 + 1 + 10 + 11 + 212 = 666.

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

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, 21131855739 + ... + 21131861517.

Almost surely, 2^{122121011011212} is an apocalyptic number.

122121011011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122121011011212 is an abundant number, since it is smaller than the sum of its proper divisors (189887362669428).

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

122121011011212 is a wasteful number, since it uses less digits than its factorization.

122121011011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692 (or 10687 counting only the distinct ones).

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

Adding to 122121011011212 its reverse (212110110121221), we get a palindrome (334231121132433).

The spelling of 122121011011212 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, eleven million, eleven thousand, two hundred twelve".