100211100020120 has 64 divisors (see below), whose sum is σ = 229350521844000. Its totient is φ = 39395773539328.

The previous prime is 100211100020113. The next prime is 100211100020167. The reversal of 100211100020120 is 21020001112001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5045036 + ... + 15029124.

Almost surely, 2^{100211100020120} is an apocalyptic number.

100211100020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100211100020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114675260922000).

100211100020120 is an abundant number, since it is smaller than the sum of its proper divisors (129139421823880).

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

100211100020120 is a wasteful number, since it uses less digits than its factorization.

100211100020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9988412 (or 9988408 counting only the distinct ones).

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

Adding to 100211100020120 its reverse (21020001112001), we get a palindrome (121231101132121).

The spelling of 100211100020120 in words is "one hundred trillion, two hundred eleven billion, one hundred million, twenty thousand, one hundred twenty".