22180485312 has 280 divisors, whose sum is σ = 67985329104. Its totient is φ = 7144962048.

The previous prime is 22180485307. The next prime is 22180485347. The reversal of 22180485312 is 21358408122.

It is a happy number.

22180485312 is a `hidden beast` number, since 2 + 2 + 1 + 80 + 48 + 531 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37785883 + ... + 37786469.

Almost surely, 2^22180485312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22180485312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33992664552).

22180485312 is an abundant number, since it is smaller than the sum of its proper divisors (45804843792).

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

22180485312 is a wasteful number, since it uses less digits than its factorization.

22180485312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 22180485312 in words is "twenty-two billion, one hundred eighty million, four hundred eighty-five thousand, three hundred twelve".