22000824981 has 12 divisors (see below), whose sum is σ = 31780814208. Its totient is φ = 14666365224.

The previous prime is 22000824971. The next prime is 22000825003. The reversal of 22000824981 is 18942800022.

It is not a de Polignac number, because 22000824981 - 2¹⁵ = 22000792213 is a prime.

It is a super-2 number, since 2×22000824981² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000824971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119646 + ... + 241488.

It is an arithmetic number, because the mean of its divisors is an integer number (2648401184).

Almost surely, 2^22000824981 is an apocalyptic number.

It is an amenable number.

22000824981 is a deficient number, since it is larger than the sum of its proper divisors (9779989227).

22000824981 is a wasteful number, since it uses less digits than its factorization.

22000824981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141912 (or 141909 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 22000824981 in words is "twenty-two billion, eight hundred twenty-four thousand, nine hundred eighty-one".