102110121021020 has 96 divisors (see below), whose sum is σ = 249045994745856. Its totient is φ = 34443869875200.

The previous prime is 102110121021011. The next prime is 102110121021043. The reversal of 102110121021020 is 20120121011201.

It is a super-4 number, since 4×102110121021020⁴ (a number of 57 digits) contains 4444 as substring.

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 = 102110121020986 and 102110121021004.

It is a congruent number.

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, 15430796 + ... + 21031635.

It is an arithmetic number, because the mean of its divisors is an integer number (2594229111936).

Almost surely, 2^{102110121021020} is an apocalyptic number.

102110121021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110121021020 is an abundant number, since it is smaller than the sum of its proper divisors (146935873724836).

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

102110121021020 is a wasteful number, since it uses less digits than its factorization.

102110121021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36462771 (or 36462769 counting only the distinct ones).

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

Adding to 102110121021020 its reverse (20120121011201), we get a palindrome (122230242032221).

The spelling of 102110121021020 in words is "one hundred two trillion, one hundred ten billion, one hundred twenty-one million, twenty-one thousand, twenty".