123021210302212 has 6 divisors (see below), whose sum is σ = 215287118028878. Its totient is φ = 61510605151104.

The previous prime is 123021210302189. The next prime is 123021210302297. The reversal of 123021210302212 is 212203012120321.

It can be written as a sum of positive squares in only one way, i.e., 118516187072196 + 4505023230016 = 10886514^2 + 2122504^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15377651287773 + ... + 15377651287780.

Almost surely, 2^{123021210302212} is an apocalyptic number.

It is an amenable number.

123021210302212 is a deficient number, since it is larger than the sum of its proper divisors (92265907726666).

123021210302212 is a wasteful number, since it uses less digits than its factorization.

123021210302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30755302575557 (or 30755302575555 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 123021210302212 its reverse (212203012120321), we get a palindrome (335224222422533).

The spelling of 123021210302212 in words is "one hundred twenty-three trillion, twenty-one billion, two hundred ten million, three hundred two thousand, two hundred twelve".