631197812022 has 16 divisors (see below), whose sum is σ = 1281237350592. Its totient is φ = 207258982920.

The previous prime is 631197812009. The next prime is 631197812023. The reversal of 631197812022 is 220218791136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631197812023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785071504 + ... + 785072307.

It is an arithmetic number, because the mean of its divisors is an integer number (80077334412).

Almost surely, 2^631197812022 is an apocalyptic number.

631197812022 is an abundant number, since it is smaller than the sum of its proper divisors (650039538570).

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

631197812022 is a wasteful number, since it uses less digits than its factorization.

631197812022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570143883.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 631197812022 in words is "six hundred thirty-one billion, one hundred ninety-seven million, eight hundred twelve thousand, twenty-two".