22261211249 has 4 divisors (see below), whose sum is σ = 22278376164. Its totient is φ = 22244046336.

The previous prime is 22261211239. The next prime is 22261211251. The reversal of 22261211249 is 94211216222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22098903649 + 162307600 = 148657^2 + 12740^2 .

It is a cyclic number.

It is not a de Polignac number, because 22261211249 - 2¹² = 22261207153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22261211239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8580512 + ... + 8583105.

It is an arithmetic number, because the mean of its divisors is an integer number (5569594041).

Almost surely, 2^22261211249 is an apocalyptic number.

It is an amenable number.

22261211249 is a deficient number, since it is larger than the sum of its proper divisors (17164915).

22261211249 is a wasteful number, since it uses less digits than its factorization.

22261211249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17164914.

The product of its digits is 6912, while the sum is 32.

The spelling of 22261211249 in words is "twenty-two billion, two hundred sixty-one million, two hundred eleven thousand, two hundred forty-nine".