22499700001 has 9 divisors (see below), whose sum is σ = 22883900403. Its totient is φ = 22121852520.

The previous prime is 22499699969. The next prime is 22499700017. The reversal of 22499700001 is 10000799422.

It is a happy number.

The square root of 22499700001 is 149999.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 731648401 + 21768051600 = 27049^2 + 147540^2 .

It is not a de Polignac number, because 22499700001 - 2⁵ = 22499699969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22499700001.

It is not an unprimeable number, because it can be changed into a prime (22499700701) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9148710 + ... + 9151168.

Almost surely, 2^22499700001 is an apocalyptic number.

22499700001 is the 149999-th square number.

22499700001 is the 75000-th centered octagonal number.

It is an amenable number.

22499700001 is a deficient number, since it is larger than the sum of its proper divisors (384200402).

22499700001 is an frugal number, since it uses more digits than its factorization.

22499700001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

It can be divided in two parts, 22499 and 700001, that added together give a square (722500 = 850²).

The spelling of 22499700001 in words is "twenty-two billion, four hundred ninety-nine million, seven hundred thousand, one".