20211120120100 has 144 divisors (see below), whose sum is σ = 53981857440000. Its totient is φ = 6396175941120.

The previous prime is 20211120120091. The next prime is 20211120120131. The reversal of 20211120120100 is 102102111202.

It is a super-2 number, since 2×20211120120100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252475881 + ... + 252555919.

It is an arithmetic number, because the mean of its divisors is an integer number (374874010000).

Almost surely, 2^{20211120120100} is an apocalyptic number.

20211120120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211120120100 is an abundant number, since it is smaller than the sum of its proper divisors (33770737319900).

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

20211120120100 is a wasteful number, since it uses less digits than its factorization.

20211120120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107822 (or 107815 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20211120120100 its reverse (102102111202), we get a palindrome (20313222231302).

The spelling of 20211120120100 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, one hundred twenty thousand, one hundred".