102111210212020 has 48 divisors (see below), whose sum is σ = 216124542627840. Its totient is φ = 40522396207104.

The previous prime is 102111210211961. The next prime is 102111210212047. The reversal of 102111210212020 is 20212012111201.

It is a junction number, because it is equal to n+sod(n) for n = 102111210211985 and 102111210212003.

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, 280861716 + ... + 281225044.

It is an arithmetic number, because the mean of its divisors is an integer number (4502594638080).

Almost surely, 2^{102111210212020} is an apocalyptic number.

102111210212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111210212020 is an abundant number, since it is smaller than the sum of its proper divisors (114013332415820).

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

102111210212020 is a wasteful number, since it uses less digits than its factorization.

102111210212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474112 (or 474110 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102111210212020 its reverse (20212012111201), we get a palindrome (122323222323221).

The spelling of 102111210212020 in words is "one hundred two trillion, one hundred eleven billion, two hundred ten million, two hundred twelve thousand, twenty".