102121110212020 has 96 divisors (see below), whose sum is σ = 218954933568000. Its totient is φ = 39996937344000.

The previous prime is 102121110211957. The next prime is 102121110212027. The reversal of 102121110212020 is 20212011121201.

It is a junction number, because it is equal to n+sod(n) for n = 102121110211985 and 102121110212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121110212027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375031920 + ... + 375304120.

It is an arithmetic number, because the mean of its divisors is an integer number (2280780558000).

Almost surely, 2^{102121110212020} is an apocalyptic number.

102121110212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121110212020 is an abundant number, since it is smaller than the sum of its proper divisors (116833823355980).

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

102121110212020 is a wasteful number, since it uses less digits than its factorization.

102121110212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273529 (or 273527 counting only the distinct ones).

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

Adding to 102121110212020 its reverse (20212011121201), we get a palindrome (122333121333221).

The spelling of 102121110212020 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred ten million, two hundred twelve thousand, twenty".