122012321211 has 72 divisors (see below), whose sum is σ = 200299117200. Its totient is φ = 71461906560.

The previous prime is 122012321203. The next prime is 122012321219. The reversal of 122012321211 is 112123210221.

122012321211 is a `hidden beast` number, since 1 + 220 + 1 + 232 + 1 + 211 = 666.

It is an interprime number because it is at equal distance from previous prime (122012321203) and next prime (122012321219).

It is not a de Polignac number, because 122012321211 - 2³ = 122012321203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122012321219) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5993496 + ... + 6013818.

Almost surely, 2^122012321211 is an apocalyptic number.

122012321211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122012321211 is a deficient number, since it is larger than the sum of its proper divisors (78286795989).

122012321211 is a wasteful number, since it uses less digits than its factorization.

122012321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20537 (or 20523 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122012321211 its reverse (112123210221), we get a palindrome (234135531432).

The spelling of 122012321211 in words is "one hundred twenty-two billion, twelve million, three hundred twenty-one thousand, two hundred eleven".