100122011000020 has 24 divisors (see below), whose sum is σ = 210257963848800. Its totient is φ = 40048472828832.

The previous prime is 100122010999979. The next prime is 100122011000027. The reversal of 100122011000020 is 20000110221001.

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

It is a junction number, because it is equal to n+sod(n) for n = 100122010999970 and 100122011000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122011000027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18239850 + ... + 23085409.

It is an arithmetic number, because the mean of its divisors is an integer number (8760748493700).

Almost surely, 2^{100122011000020} is an apocalyptic number.

100122011000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100122011000020 is an abundant number, since it is smaller than the sum of its proper divisors (110135952848780).

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

100122011000020 is a wasteful number, since it uses less digits than its factorization.

100122011000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41446407 (or 41446405 counting only the distinct ones).

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

Adding to 100122011000020 its reverse (20000110221001), we get a palindrome (120122121221021).

The spelling of 100122011000020 in words is "one hundred trillion, one hundred twenty-two billion, eleven million, twenty", and thus it is an aban number.