102321021122 has 4 divisors (see below), whose sum is σ = 153481531686. Its totient is φ = 51160510560.

The previous prime is 102321021113. The next prime is 102321021139. The reversal of 102321021122 is 221120123201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221120123201 = 94399 ⋅2342399.

It can be written as a sum of positive squares in only one way, i.e., 99539619001 + 2781402121 = 315499^2 + 52739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102321021122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25580255279 + ... + 25580255282.

Almost surely, 2^102321021122 is an apocalyptic number.

102321021122 is a deficient number, since it is larger than the sum of its proper divisors (51160510564).

102321021122 is an equidigital number, since it uses as much as digits as its factorization.

102321021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51160510563.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102321021122 its reverse (221120123201), we get a palindrome (323441144323).

The spelling of 102321021122 in words is "one hundred two billion, three hundred twenty-one million, twenty-one thousand, one hundred twenty-two".