22220757442 has 8 divisors (see below), whose sum is σ = 35895069756. Its totient is φ = 10255734192.

The previous prime is 22220757421. The next prime is 22220757463. The reversal of 22220757442 is 24475702222.

It is an interprime number because it is at equal distance from previous prime (22220757421) and next prime (22220757463).

It can be written as a sum of positive squares in 2 ways, for example, as 16356107881 + 5864649561 = 127891^2 + 76581^2 .

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

It is a super-2 number, since 2×22220757442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427322233 + ... + 427322284.

Almost surely, 2^22220757442 is an apocalyptic number.

22220757442 is a deficient number, since it is larger than the sum of its proper divisors (13674312314).

22220757442 is a wasteful number, since it uses less digits than its factorization.

22220757442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854644532.

The product of its (nonzero) digits is 125440, while the sum is 37.

The spelling of 22220757442 in words is "twenty-two billion, two hundred twenty million, seven hundred fifty-seven thousand, four hundred forty-two".