22161707002 has 4 divisors (see below), whose sum is σ = 33242560506. Its totient is φ = 11080853500.

The previous prime is 22161706981. The next prime is 22161707003. The reversal of 22161707002 is 20070716122.

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., 15314310001 + 6847397001 = 123751^2 + 82749^2 .

It is a super-2 number, since 2×22161707002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22161707003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5540426749 + ... + 5540426752.

Almost surely, 2^22161707002 is an apocalyptic number.

22161707002 is a deficient number, since it is larger than the sum of its proper divisors (11080853504).

22161707002 is a wasteful number, since it uses less digits than its factorization.

22161707002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11080853503.

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 22161707002 in words is "twenty-two billion, one hundred sixty-one million, seven hundred seven thousand, two".