22111001010218 has 32 divisors (see below), whose sum is σ = 34033156649856. Its totient is φ = 10769736414528.

The previous prime is 22111001010211. The next prime is 22111001010221. The reversal of 22111001010218 is 81201010011122.

It is a happy number.

It is a super-2 number, since 2×22111001010218² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22111001010218.

It is not an unprimeable number, because it can be changed into a prime (22111001010211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14923580 + ... + 16338152.

It is an arithmetic number, because the mean of its divisors is an integer number (1063536145308).

Almost surely, 2^{22111001010218} is an apocalyptic number.

22111001010218 is a deficient number, since it is larger than the sum of its proper divisors (11922155639638).

22111001010218 is a wasteful number, since it uses less digits than its factorization.

22111001010218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415678.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 22111001010218 in words is "twenty-two trillion, one hundred eleven billion, one million, ten thousand, two hundred eighteen".