22236166223250 has 128 divisors (see below), whose sum is σ = 63490735526400. Its totient is φ = 5077705881600.

The previous prime is 22236166223237. The next prime is 22236166223269. The reversal of 22236166223250 is 5232266163222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3488442 + ... + 7526058.

It is an arithmetic number, because the mean of its divisors is an integer number (496021371300).

Almost surely, 2^{22236166223250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22236166223250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31745367763200).

22236166223250 is an abundant number, since it is smaller than the sum of its proper divisors (41254569303150).

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

22236166223250 is a wasteful number, since it uses less digits than its factorization.

22236166223250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038693 (or 4038683 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 22236166223250 in words is "twenty-two trillion, two hundred thirty-six billion, one hundred sixty-six million, two hundred twenty-three thousand, two hundred fifty".