102021321122122 has 8 divisors (see below), whose sum is σ = 158308946568900. Its totient is φ = 49251672265824.

The previous prime is 102021321122111. The next prime is 102021321122131. The reversal of 102021321122122 is 221221123120201.

It can be written as a sum of positive squares in 2 ways, for example, as 97597782547281 + 4423538574841 = 9879159^2 + 2103221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102021321122093 and 102021321122102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879494147547 + ... + 879494147662.

Almost surely, 2^{102021321122122} is an apocalyptic number.

102021321122122 is a deficient number, since it is larger than the sum of its proper divisors (56287625446778).

102021321122122 is a wasteful number, since it uses less digits than its factorization.

102021321122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758988295240.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 102021321122122 its reverse (221221123120201), we get a palindrome (323242444242323).

The spelling of 102021321122122 in words is "one hundred two trillion, twenty-one billion, three hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".