102021111012020 has 48 divisors (see below), whose sum is σ = 216550339076736. Its totient is φ = 40369895280000.

The previous prime is 102021111011959. The next prime is 102021111012031. The reversal of 102021111012020 is 20210111120201.

102021111012020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102021111011986 and 102021111012004.

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, 19199696 + ... + 23930535.

It is an arithmetic number, because the mean of its divisors is an integer number (4511465397432).

Almost surely, 2^{102021111012020} is an apocalyptic number.

102021111012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021111012020 is an abundant number, since it is smaller than the sum of its proper divisors (114529228064716).

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

102021111012020 is a wasteful number, since it uses less digits than its factorization.

102021111012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43131512 (or 43131510 counting only the distinct ones).

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

Adding to 102021111012020 its reverse (20210111120201), we get a palindrome (122231222132221).

The spelling of 102021111012020 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, twelve thousand, twenty".