100120100022100 has 36 divisors (see below), whose sum is σ = 217261307004448. Its totient is φ = 40047912828000.

The previous prime is 100120100022097. The next prime is 100120100022101. The reversal of 100120100022100 is 1220001021001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120100022101) 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, 34026535 + ... + 36851665.

Almost surely, 2^{100120100022100} is an apocalyptic number.

100120100022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120100022100 is an abundant number, since it is smaller than the sum of its proper divisors (117141206982348).

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

100120100022100 is a wasteful number, since it uses less digits than its factorization.

100120100022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179536 (or 3179529 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100120100022100 its reverse (1220001021001), we get a palindrome (101340101043101).

The spelling of 100120100022100 in words is "one hundred trillion, one hundred twenty billion, one hundred million, twenty-two thousand, one hundred".