22120161700 has 72 divisors (see below), whose sum is σ = 59077871552. Its totient is φ = 7000663680.

The previous prime is 22120161691. The next prime is 22120161709. The reversal of 22120161700 is 716102122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22120161691) and next prime (22120161709).

It is not an unprimeable number, because it can be changed into a prime (22120161709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1206294 + ... + 1224493.

Almost surely, 2^22120161700 is an apocalyptic number.

22120161700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120161700 is an abundant number, since it is smaller than the sum of its proper divisors (36957709852).

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

22120161700 is a wasteful number, since it uses less digits than its factorization.

22120161700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430821 (or 2430814 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 22120161700 its reverse (716102122), we get a palindrome (22836263822).

The spelling of 22120161700 in words is "twenty-two billion, one hundred twenty million, one hundred sixty-one thousand, seven hundred".