22087200690 has 384 divisors, whose sum is σ = 65072367360. Its totient is φ = 5377010688.

The previous prime is 22087200671. The next prime is 22087200713. The reversal of 22087200690 is 9600278022.

It is a super-2 number, since 2×22087200690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 112117672 + ... + 112117868.

It is an arithmetic number, because the mean of its divisors is an integer number (169459290).

Almost surely, 2^22087200690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22087200690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32536183680).

22087200690 is an abundant number, since it is smaller than the sum of its proper divisors (42985166670).

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

22087200690 is a wasteful number, since it uses less digits than its factorization.

22087200690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 22087200690 in words is "twenty-two billion, eighty-seven million, two hundred thousand, six hundred ninety".