22161711122 has 8 divisors (see below), whose sum is σ = 35198011836. Its totient is φ = 10429040512.

The previous prime is 22161711113. The next prime is 22161711127. The reversal of 22161711122 is 22111716122.

It can be written as a sum of positive squares in 2 ways, for example, as 22132215361 + 29495761 = 148769^2 + 5431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22161711122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22161711091 and 22161711100.

It is not an unprimeable number, because it can be changed into a prime (22161711127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325907483 + ... + 325907550.

Almost surely, 2^22161711122 is an apocalyptic number.

22161711122 is a deficient number, since it is larger than the sum of its proper divisors (13036300714).

22161711122 is a wasteful number, since it uses less digits than its factorization.

22161711122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651815052.

The product of its digits is 672, while the sum is 26.

Subtracting from 22161711122 its reverse (22111716122), we obtain a triangular number (49995000 = T₉₉₉₉).

The spelling of 22161711122 in words is "twenty-two billion, one hundred sixty-one million, seven hundred eleven thousand, one hundred twenty-two".