100122120021000 has 256 divisors, whose sum is σ = 389462044907520. Its totient is φ = 20804596320000.

The previous prime is 100122120020987. The next prime is 100122120021017. The reversal of 100122120021000 is 120021221001.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216483546 + ... + 216945545.

It is an arithmetic number, because the mean of its divisors is an integer number (1521336112920).

Almost surely, 2^{100122120021000} is an apocalyptic number.

100122120021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122120021000 is an abundant number, since it is smaller than the sum of its proper divisors (289339924886520).

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

100122120021000 is a wasteful number, since it uses less digits than its factorization.

100122120021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433429133 (or 433429119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100122120021000 its reverse (120021221001), we get a palindrome (100242141242001).

The spelling of 100122120021000 in words is "one hundred trillion, one hundred twenty-two billion, one hundred twenty million, twenty-one thousand".