122221200100012 has 24 divisors (see below), whose sum is σ = 232576264278176. Its totient is φ = 55862116846848.

The previous prime is 122221200099961. The next prime is 122221200100039. The reversal of 122221200100012 is 210001002122221.

It is a happy number.

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, 11409740733 + ... + 11409751444.

Almost surely, 2^{122221200100012} is an apocalyptic number.

It is an amenable number.

122221200100012 is a deficient number, since it is larger than the sum of its proper divisors (110355064178164).

122221200100012 is a wasteful number, since it uses less digits than its factorization.

122221200100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22819492297 (or 22819492295 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122221200100012 its reverse (210001002122221), we get a palindrome (332222202222233).

The spelling of 122221200100012 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred million, one hundred thousand, twelve".