22156751002 has 4 divisors (see below), whose sum is σ = 33235126506. Its totient is φ = 11078375500.

The previous prime is 22156750999. The next prime is 22156751017. The reversal of 22156751002 is 20015765122.

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

It can be written as a sum of positive squares in only one way, i.e., 14280011001 + 7876740001 = 119499^2 + 88751^2 .

It is a super-2 number, since 2×22156751002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5539187749 + ... + 5539187752.

Almost surely, 2^22156751002 is an apocalyptic number.

22156751002 is a deficient number, since it is larger than the sum of its proper divisors (11078375504).

22156751002 is a wasteful number, since it uses less digits than its factorization.

22156751002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11078375503.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 22156751002 in words is "twenty-two billion, one hundred fifty-six million, seven hundred fifty-one thousand, two".