22001018 has 16 divisors (see below), whose sum is σ = 37086336. Its totient is φ = 9712560.

The previous prime is 22000963. The next prime is 22001033. The reversal of 22001018 is 81010022.

It is a junction number, because it is equal to n+sod(n) for n = 22000993 and 22001011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17798 + ... + 18993.

It is an arithmetic number, because the mean of its divisors is an integer number (2317896).

Almost surely, 2^22001018 is an apocalyptic number.

22001018 is a deficient number, since it is larger than the sum of its proper divisors (15085318).

22001018 is a wasteful number, since it uses less digits than its factorization.

22001018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36829.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 22001018 is about 4690.5242777327. The cubic root of 22001018 is about 280.2082549323.

The spelling of 22001018 in words is "twenty-two million, one thousand, eighteen".