122011021210212 has 18 divisors (see below), whose sum is σ = 308416748059238. Its totient is φ = 40670340403392.

The previous prime is 122011021210163. The next prime is 122011021210219. The reversal of 122011021210212 is 212012120110221.

122011021210212 is a `hidden beast` number, since 1 + 220 + 1 + 1 + 0 + 21 + 210 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 117448935312996 + 4562085897216 = 10837386^2 + 2135904^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (122011021210219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1694597516773 + ... + 1694597516844.

Almost surely, 2^{122011021210212} is an apocalyptic number.

122011021210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122011021210212 is an abundant number, since it is smaller than the sum of its proper divisors (186405726849026).

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

122011021210212 is a wasteful number, since it uses less digits than its factorization.

122011021210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389195033627 (or 3389195033622 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122011021210212 its reverse (212012120110221), we get a palindrome (334023141320433).

The spelling of 122011021210212 in words is "one hundred twenty-two trillion, eleven billion, twenty-one million, two hundred ten thousand, two hundred twelve".