188222360020 has 24 divisors (see below), whose sum is σ = 395281135368. Its totient is φ = 75286243200.

The previous prime is 188222359957. The next prime is 188222360083. The reversal of 188222360020 is 20063222881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (188222359957) and next prime (188222360083).

It can be written as a sum of positive squares in 4 ways, for example, as 143854835524 + 44367524496 = 379282^2 + 210636^2 .

It is a super-2 number, since 2×188222360020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 459750 + ... + 766690.

It is an arithmetic number, because the mean of its divisors is an integer number (16470047307).

Almost surely, 2^188222360020 is an apocalyptic number.

188222360020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188222360020 is an abundant number, since it is smaller than the sum of its proper divisors (207058775348).

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

188222360020 is a wasteful number, since it uses less digits than its factorization.

188222360020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337611 (or 337609 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 188222360020 in words is "one hundred eighty-eight billion, two hundred twenty-two million, three hundred sixty thousand, twenty".