22239911850 has 96 divisors (see below), whose sum is σ = 60065530560. Its totient is φ = 5412887040.

The previous prime is 22239911833. The next prime is 22239911857. The reversal of 22239911850 is 5811993222.

It is a super-2 number, since 2×22239911850² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22239911857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109477 + ... + 237623.

It is an arithmetic number, because the mean of its divisors is an integer number (625682610).

Almost surely, 2^22239911850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22239911850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30032765280).

22239911850 is an abundant number, since it is smaller than the sum of its proper divisors (37825618710).

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

22239911850 is a wasteful number, since it uses less digits than its factorization.

22239911850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128264 (or 128259 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 22239911850 in words is "twenty-two billion, two hundred thirty-nine million, nine hundred eleven thousand, eight hundred fifty".