20010100919100 has 36 divisors (see below), whose sum is σ = 57895891993464. Its totient is φ = 5336026911680.

The previous prime is 20010100919087. The next prime is 20010100919131. The reversal of 20010100919100 is 191900101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33350167899 + ... + 33350168498.

Almost surely, 2^{20010100919100} is an apocalyptic number.

20010100919100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010100919100 is an abundant number, since it is smaller than the sum of its proper divisors (37885791074364).

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

20010100919100 is a wasteful number, since it uses less digits than its factorization.

20010100919100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66700336414 (or 66700336407 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 20010100919100 in words is "twenty trillion, ten billion, one hundred million, nine hundred nineteen thousand, one hundred".