123220021213300 has 72 divisors (see below), whose sum is σ = 292275308308032. Its totient is φ = 44718200160000.

The previous prime is 123220021213279. The next prime is 123220021213319. The reversal of 123220021213300 is 3312120022321.

It is a super-2 number, since 2×123220021213300² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110796801 + ... + 111903400.

It is an arithmetic number, because the mean of its divisors is an integer number (4059379282056).

Almost surely, 2^{123220021213300} is an apocalyptic number.

123220021213300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123220021213300 is an abundant number, since it is smaller than the sum of its proper divisors (169055287094732).

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

123220021213300 is a wasteful number, since it uses less digits than its factorization.

123220021213300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222700729 (or 222700722 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123220021213300 its reverse (3312120022321), we get a palindrome (126532141235621).

The spelling of 123220021213300 in words is "one hundred twenty-three trillion, two hundred twenty billion, twenty-one million, two hundred thirteen thousand, three hundred".