22002201018 has 64 divisors (see below), whose sum is σ = 55978398720. Its totient is φ = 6275116656.

The previous prime is 22002201007. The next prime is 22002201041. The reversal of 22002201018 is 81010220022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 161121 + ... + 264507.

It is an arithmetic number, because the mean of its divisors is an integer number (874662480).

Almost surely, 2^22002201018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002201018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27989199360).

22002201018 is an abundant number, since it is smaller than the sum of its proper divisors (33976197702).

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

22002201018 is a wasteful number, since it uses less digits than its factorization.

22002201018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103968 (or 103962 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 22002201018 in words is "twenty-two billion, two million, two hundred one thousand, eighteen".