122201021211210 has 48 divisors (see below), whose sum is σ = 317757560350464. Its totient is φ = 32583358969056.

The previous prime is 122201021211173. The next prime is 122201021211221. The reversal of 122201021211210 is 12112120102221.

122201021211210 is a `hidden beast` number, since 1 + 2 + 220 + 1 + 0 + 21 + 211 + 210 = 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 23 ways as a sum of consecutive naturals, for example, 73759942 + ... + 75398481.

It is an arithmetic number, because the mean of its divisors is an integer number (6619949173968).

Almost surely, 2^{122201021211210} is an apocalyptic number.

122201021211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122201021211210 is an abundant number, since it is smaller than the sum of its proper divisors (195556539139254).

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

122201021211210 is a wasteful number, since it uses less digits than its factorization.

122201021211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149167539 (or 149167536 counting only the distinct ones).

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

Adding to 122201021211210 its reverse (12112120102221), we get a palindrome (134313141313431).

The spelling of 122201021211210 in words is "one hundred twenty-two trillion, two hundred one billion, twenty-one million, two hundred eleven thousand, two hundred ten".