210123202312122 has 64 divisors (see below), whose sum is σ = 468080091795456. Its totient is φ = 62349849416960.

The previous prime is 210123202312103. The next prime is 210123202312139. The reversal of 210123202312122 is 221213202321012.

It is a junction number, because it is equal to n+sod(n) for n = 210123202312092 and 210123202312101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169105098 + ... + 170343125.

It is an arithmetic number, because the mean of its divisors is an integer number (7313751434304).

Almost surely, 2^{210123202312122} is an apocalyptic number.

210123202312122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210123202312122 is an abundant number, since it is smaller than the sum of its proper divisors (257956889483334).

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

210123202312122 is a wasteful number, since it uses less digits than its factorization.

210123202312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339448435.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 210123202312122 its reverse (221213202321012), we get a palindrome (431336404633134).

The spelling of 210123202312122 in words is "two hundred ten trillion, one hundred twenty-three billion, two hundred two million, three hundred twelve thousand, one hundred twenty-two".