100100211200020 has 24 divisors (see below), whose sum is σ = 214683006150144. Its totient is φ = 39188167788576.

The previous prime is 100100211199993. The next prime is 100100211200051. The reversal of 100100211200020 is 20002112001001.

It is a super-3 number, since 3×100100211200020³ (a number of 43 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53244792252 + ... + 53244794131.

It is an arithmetic number, because the mean of its divisors is an integer number (8945125256256).

Almost surely, 2^{100100211200020} is an apocalyptic number.

100100211200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100100211200020 is an abundant number, since it is smaller than the sum of its proper divisors (114582794950124).

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

100100211200020 is a wasteful number, since it uses less digits than its factorization.

100100211200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106489586439 (or 106489586437 counting only the distinct ones).

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

Adding to 100100211200020 its reverse (20002112001001), we get a palindrome (120102323201021).

The spelling of 100100211200020 in words is "one hundred trillion, one hundred billion, two hundred eleven million, two hundred thousand, twenty".