422155244212 has 96 divisors (see below), whose sum is σ = 809645957120. Its totient is φ = 191437810560.

The previous prime is 422155244179. The next prime is 422155244219. The reversal of 422155244212 is 212442551224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422155244219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681995239 + ... + 681995857.

Almost surely, 2^422155244212 is an apocalyptic number.

It is an amenable number.

422155244212 is a deficient number, since it is larger than the sum of its proper divisors (387490712908).

422155244212 is a wasteful number, since it uses less digits than its factorization.

422155244212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its digits is 51200, while the sum is 34.

Adding to 422155244212 its reverse (212442551224), we get a palindrome (634597795436).

The spelling of 422155244212 in words is "four hundred twenty-two billion, one hundred fifty-five million, two hundred forty-four thousand, two hundred twelve".