123222021210 has 48 divisors (see below), whose sum is σ = 330712012800. Its totient is φ = 31799230560.

The previous prime is 123222021199. The next prime is 123222021233. The reversal of 123222021210 is 12120222321.

123222021210 is a `hidden beast` number, since 1 + 232 + 220 + 2 + 1 + 210 = 666.

It is a super-2 number, since 2×123222021210² (a number of 23 digits) contains 22 as substring.

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, 22080010 + ... + 22085589.

It is an arithmetic number, because the mean of its divisors is an integer number (6889833600).

Almost surely, 2^123222021210 is an apocalyptic number.

123222021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123222021210 is an abundant number, since it is smaller than the sum of its proper divisors (207489991590).

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

123222021210 is a wasteful number, since it uses less digits than its factorization.

123222021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44165643 (or 44165640 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 123222021210 its reverse (12120222321), we get a palindrome (135342243531).

The spelling of 123222021210 in words is "one hundred twenty-three billion, two hundred twenty-two million, twenty-one thousand, two hundred ten".