100120223100 has 72 divisors (see below), whose sum is σ = 289719925488. Its totient is φ = 26695155200.

The previous prime is 100120223053. The next prime is 100120223129. The reversal of 100120223100 is 1322021001.

It is a super-2 number, since 2×100120223100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 2831530 + ... + 2866670.

It is an arithmetic number, because the mean of its divisors is an integer number (4023887854).

Almost surely, 2^100120223100 is an apocalyptic number.

100120223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120223100 is an abundant number, since it is smaller than the sum of its proper divisors (189599702388).

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

100120223100 is a wasteful number, since it uses less digits than its factorization.

100120223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44655 (or 44648 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100120223100 its reverse (1322021001), we get a palindrome (101442244101).

The spelling of 100120223100 in words is "one hundred billion, one hundred twenty million, two hundred twenty-three thousand, one hundred".