10102020121090 has 16 divisors (see below), whose sum is σ = 18183829169088. Its totient is φ = 4040765170416.

The previous prime is 10102020120991. The next prime is 10102020121147. The reversal of 10102020121090 is 9012102020101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4361382 + ... + 6263041.

It is an arithmetic number, because the mean of its divisors is an integer number (1136489323068).

Almost surely, 2^{10102020121090} is an apocalyptic number.

10102020121090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10102020121090 is a deficient number, since it is larger than the sum of its proper divisors (8081809047998).

10102020121090 is a wasteful number, since it uses less digits than its factorization.

10102020121090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719513.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 10102020121090 its reverse (9012102020101), we get a palindrome (19114122141191).

The spelling of 10102020121090 in words is "ten trillion, one hundred two billion, twenty million, one hundred twenty-one thousand, ninety".