22145881002 has 32 divisors (see below), whose sum is σ = 50859078144. Its totient is φ = 6297404400.

The previous prime is 22145880989. The next prime is 22145881003. The reversal of 22145881002 is 20018854122.

It is not an unprimeable number, because it can be changed into a prime (22145881003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240624 + ... + 1258347.

It is an arithmetic number, because the mean of its divisors is an integer number (1589346192).

Almost surely, 2^22145881002 is an apocalyptic number.

22145881002 is an abundant number, since it is smaller than the sum of its proper divisors (28713197142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22145881002 is a wasteful number, since it uses less digits than its factorization.

22145881002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499194.

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 22145881002 in words is "twenty-two billion, one hundred forty-five million, eight hundred eighty-one thousand, two".