22237669129 has 9 divisors (see below), whose sum is σ = 24081942279. Its totient is φ = 20525289720.

The previous prime is 22237669123. The next prime is 22237669151. The reversal of 22237669129 is 92196673222.

The square root of 22237669129 is 149123.

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., 3289596025 + 18948073104 = 57355^2 + 137652^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22237669129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22237669123) 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, 1932864 + ... + 1944334.

Almost surely, 2^22237669129 is an apocalyptic number.

22237669129 is the 149123-rd square number.

22237669129 is the 74562-nd centered octagonal number.

It is an amenable number.

22237669129 is a deficient number, since it is larger than the sum of its proper divisors (1844273150).

22237669129 is an frugal number, since it uses more digits than its factorization.

22237669129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22968 (or 11484 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

Multiplying 22237669129 by its sum of digits (49), we get a square (1089645787321 = 1043861²).

The spelling of 22237669129 in words is "twenty-two billion, two hundred thirty-seven million, six hundred sixty-nine thousand, one hundred twenty-nine".