20186700222 has 64 divisors (see below), whose sum is σ = 44579808000. Its totient is φ = 6054316800.

The previous prime is 20186700221. The next prime is 20186700251. The reversal of 20186700222 is 22200768102.

It is a self number, because there is not a number n which added to its sum of digits gives 20186700222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20186700221) 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 31 ways as a sum of consecutive naturals, for example, 4791697 + ... + 4795907.

It is an arithmetic number, because the mean of its divisors is an integer number (696559500).

Almost surely, 2^20186700222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20186700222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22289904000).

20186700222 is an abundant number, since it is smaller than the sum of its proper divisors (24393107778).

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

20186700222 is a wasteful number, since it uses less digits than its factorization.

20186700222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 20186700222 in words is "twenty billion, one hundred eighty-six million, seven hundred thousand, two hundred twenty-two".