102121000112020 has 36 divisors (see below), whose sum is σ = 226335213837684. Its totient is φ = 38698484250240.

The previous prime is 102121000111981. The next prime is 102121000112023. The reversal of 102121000112020 is 20211000121201.

It can be written as a sum of positive squares in 2 ways, for example, as 64919954373264 + 37201045738756 = 8057292^2 + 6099266^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121000112023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7072084201 + ... + 7072098640.

It is an arithmetic number, because the mean of its divisors is an integer number (6287089273269).

Almost surely, 2^{102121000112020} is an apocalyptic number.

102121000112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121000112020 is an abundant number, since it is smaller than the sum of its proper divisors (124214213725664).

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

102121000112020 is a wasteful number, since it uses less digits than its factorization.

102121000112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14144182888 (or 14144182867 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121000112020 its reverse (20211000121201), we get a palindrome (122332000233221).

The spelling of 102121000112020 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twelve thousand, twenty".