102101010020122 has 4 divisors (see below), whose sum is σ = 153151515030186. Its totient is φ = 51050505010060.

The previous prime is 102101010019999. The next prime is 102101010020161. The reversal of 102101010020122 is 221020010101201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 101769983548321 + 331026471801 = 10088111^2 + 575349^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525252505029 + ... + 25525252505032.

Almost surely, 2^{102101010020122} is an apocalyptic number.

102101010020122 is a deficient number, since it is larger than the sum of its proper divisors (51050505010064).

102101010020122 is an equidigital number, since it uses as much as digits as its factorization.

102101010020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51050505010063.

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

Adding to 102101010020122 its reverse (221020010101201), we get a palindrome (323121020121323).

The spelling of 102101010020122 in words is "one hundred two trillion, one hundred one billion, ten million, twenty thousand, one hundred twenty-two".