22161630422 has 16 divisors (see below), whose sum is σ = 34138362192. Its totient is φ = 10784037600.

The previous prime is 22161630377. The next prime is 22161630431. The reversal of 22161630422 is 22403616122.

It is a super-2 number, since 2×22161630422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 441329 + ... + 488972.

It is an arithmetic number, because the mean of its divisors is an integer number (2133647637).

Almost surely, 2^22161630422 is an apocalyptic number.

22161630422 is a deficient number, since it is larger than the sum of its proper divisors (11976731770).

22161630422 is a wasteful number, since it uses less digits than its factorization.

22161630422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930623.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 22161630422 in words is "twenty-two billion, one hundred sixty-one million, six hundred thirty thousand, four hundred twenty-two".