22145034372 has 24 divisors (see below), whose sum is σ = 51680613600. Its totient is φ = 7380411456.

The previous prime is 22145034347. The next prime is 22145034383. The reversal of 22145034372 is 27343054122.

It is a super-2 number, since 2×22145034372² (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 7 ways as a sum of consecutive naturals, for example, 84097 + ... + 226632.

It is an arithmetic number, because the mean of its divisors is an integer number (2153358900).

Almost surely, 2^22145034372 is an apocalyptic number.

It is an amenable number.

22145034372 is an abundant number, since it is smaller than the sum of its proper divisors (29535579228).

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

22145034372 is a wasteful number, since it uses less digits than its factorization.

22145034372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316675 (or 316673 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

Adding to 22145034372 its reverse (27343054122), we get a palindrome (49488088494).

The spelling of 22145034372 in words is "twenty-two billion, one hundred forty-five million, thirty-four thousand, three hundred seventy-two".