123122100202 has 16 divisors (see below), whose sum is σ = 185331533832. Its totient is φ = 61345278720.

The previous prime is 123122100149. The next prime is 123122100217. The reversal of 123122100202 is 202001221321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42090215281 + 81031884921 = 205159^2 + 284661^2 .

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, 607048 + ... + 784060.

Almost surely, 2^123122100202 is an apocalyptic number.

123122100202 is a deficient number, since it is larger than the sum of its proper divisors (62209433630).

123122100202 is a wasteful number, since it uses less digits than its factorization.

123122100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178233.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 123122100202 its reverse (202001221321), we get a palindrome (325123321523).

The spelling of 123122100202 in words is "one hundred twenty-three billion, one hundred twenty-two million, one hundred thousand, two hundred two".