22115534000 has 160 divisors (see below), whose sum is σ = 61214939136. Its totient is φ = 7570041600.

The previous prime is 22115533991. The next prime is 22115534017. The reversal of 22115534000 is 43551122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13761197 + ... + 13762803.

Almost surely, 2^22115534000 is an apocalyptic number.

22115534000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22115534000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30607469568).

22115534000 is an abundant number, since it is smaller than the sum of its proper divisors (39099405136).

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

22115534000 is a wasteful number, since it uses less digits than its factorization.

22115534000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2604 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 22115534000 in words is "twenty-two billion, one hundred fifteen million, five hundred thirty-four thousand".