22209729042 has 8 divisors (see below), whose sum is σ = 44419458096. Its totient is φ = 7403243012.

The previous prime is 22209729037. The next prime is 22209729043. The reversal of 22209729042 is 24092790222.

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

22209729042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22209729043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850810748 + ... + 1850810759.

It is an arithmetic number, because the mean of its divisors is an integer number (5552432262).

Almost surely, 2^22209729042 is an apocalyptic number.

22209729042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22209729042 is a wasteful number, since it uses less digits than its factorization.

22209729042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701621512.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 22209729042 in words is "twenty-two billion, two hundred nine million, seven hundred twenty-nine thousand, forty-two".