122112020112210 has 24 divisors (see below), whose sum is σ = 317491252291980. Its totient is φ = 32563205363232.

The previous prime is 122112020112143. The next prime is 122112020112211. The reversal of 122112020112210 is 12211020211221.

122112020112210 is a `hidden beast` number, since 1 + 221 + 1 + 20 + 201 + 1 + 221 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 110970570542049 + 11141449570161 = 10534257^2 + 3337881^2 .

It is a super-2 number, since 2×122112020112210² (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 not an unprimeable number, because it can be changed into a prime (122112020112211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 678400111645 + ... + 678400111824.

Almost surely, 2^{122112020112210} is an apocalyptic number.

122112020112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122112020112210 is an abundant number, since it is smaller than the sum of its proper divisors (195379232179770).

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

122112020112210 is a wasteful number, since it uses less digits than its factorization.

122112020112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356800223482 (or 1356800223479 counting only the distinct ones).

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

Adding to 122112020112210 its reverse (12211020211221), we get a palindrome (134323040323431).

The spelling of 122112020112210 in words is "one hundred twenty-two trillion, one hundred twelve billion, twenty million, one hundred twelve thousand, two hundred ten".