122231100402 has 48 divisors (see below), whose sum is σ = 267266790648. Its totient is φ = 40369674240.

The previous prime is 122231100353. The next prime is 122231100443. The reversal of 122231100402 is 204001132221.

It is a happy number.

122231100402 is a `hidden beast` number, since 1 + 22 + 231 + 10 + 0 + 402 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 30972128121 + 91258972281 = 175989^2 + 302091^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7462702 + ... + 7479062.

Almost surely, 2^122231100402 is an apocalyptic number.

122231100402 is an abundant number, since it is smaller than the sum of its proper divisors (145035690246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122231100402 is a wasteful number, since it uses less digits than its factorization.

122231100402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20155 (or 20152 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122231100402 its reverse (204001132221), we get a palindrome (326232232623).

The spelling of 122231100402 in words is "one hundred twenty-two billion, two hundred thirty-one million, one hundred thousand, four hundred two".