22991098572072 has 320 divisors, whose sum is σ = 65448004406400. Its totient is φ = 7539512555520.

The previous prime is 22991098572053. The next prime is 22991098572073. The reversal of 22991098572072 is 27027589019922.

22991098572072 is a `hidden beast` number, since 2 + 299 + 1 + 0 + 98 + 57 + 207 + 2 = 666.

It is a super-2 number, since 2×22991098572072² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22991098572073) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17404313172 + ... + 17404314492.

It is an arithmetic number, because the mean of its divisors is an integer number (204525013770).

Almost surely, 2^{22991098572072} 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 22991098572072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32724002203200).

22991098572072 is an abundant number, since it is smaller than the sum of its proper divisors (42456905834328).

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

22991098572072 is a wasteful number, since it uses less digits than its factorization.

22991098572072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 22991098572072 in words is "twenty-two trillion, nine hundred ninety-one billion, ninety-eight million, five hundred seventy-two thousand, seventy-two".