122012194636 has 6 divisors (see below), whose sum is σ = 213521340620. Its totient is φ = 61006097316.

The previous prime is 122012194613. The next prime is 122012194637. The reversal of 122012194636 is 636491210221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122012194595 and 122012194604.

It is not an unprimeable number, because it can be changed into a prime (122012194637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15251524326 + ... + 15251524333.

Almost surely, 2^122012194636 is an apocalyptic number.

It is an amenable number.

122012194636 is a deficient number, since it is larger than the sum of its proper divisors (91509145984).

122012194636 is a wasteful number, since it uses less digits than its factorization.

122012194636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30503048663 (or 30503048661 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 122012194636 in words is "one hundred twenty-two billion, twelve million, one hundred ninety-four thousand, six hundred thirty-six".