422117121912 has 128 divisors (see below), whose sum is σ = 1203562229760. Its totient is φ = 122584872960.

The previous prime is 422117121893. The next prime is 422117122043. The reversal of 422117121912 is 219121711224.

It is a happy number.

It is a super-2 number, since 2×422117121912² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434623 + ... + 1016430.

It is an arithmetic number, because the mean of its divisors is an integer number (9402829920).

Almost surely, 2^422117121912 is an apocalyptic number.

It is an amenable number.

422117121912 is an abundant number, since it is smaller than the sum of its proper divisors (781445107848).

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

422117121912 is a wasteful number, since it uses less digits than its factorization.

422117121912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451133 (or 1451129 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The spelling of 422117121912 in words is "four hundred twenty-two billion, one hundred seventeen million, one hundred twenty-one thousand, nine hundred twelve".