20210011210100 has 72 divisors (see below), whose sum is σ = 44877200779488. Its totient is φ = 7895727100800.

The previous prime is 20210011210073. The next prime is 20210011210117. The reversal of 20210011210100 is 101211001202.

It is a super-2 number, since 2×20210011210100² (a number of 27 digits) contains 22 as substring.

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, 157259870 + ... + 157388330.

Almost surely, 2^{20210011210100} is an apocalyptic number.

20210011210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210011210100 is an abundant number, since it is smaller than the sum of its proper divisors (24667189569388).

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

20210011210100 is a wasteful number, since it uses less digits than its factorization.

20210011210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165105 (or 165098 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20210011210100 its reverse (101211001202), we get a palindrome (20311222211302).

The spelling of 20210011210100 in words is "twenty trillion, two hundred ten billion, eleven million, two hundred ten thousand, one hundred".