202101102111020 has 96 divisors (see below), whose sum is σ = 494963227852800. Its totient is φ = 69288760981440.

The previous prime is 202101102110981. The next prime is 202101102111091. The reversal of 202101102111020 is 20111201101202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 202101102110986 and 202101102111004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158289785 + ... + 159561455.

It is an arithmetic number, because the mean of its divisors is an integer number (5155866956800).

Almost surely, 2^{202101102111020} is an apocalyptic number.

202101102111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101102111020 is an abundant number, since it is smaller than the sum of its proper divisors (292862125741780).

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

202101102111020 is a wasteful number, since it uses less digits than its factorization.

202101102111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294868 (or 1294852 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 202101102111020 its reverse (20111201101202), we get a palindrome (222212303212222).

The spelling of 202101102111020 in words is "two hundred two trillion, one hundred one billion, one hundred two million, one hundred eleven thousand, twenty".