22110212218 has 8 divisors (see below), whose sum is σ = 33165988020. Its totient is φ = 11054882880.

The previous prime is 22110212213. The next prime is 22110212221. The reversal of 22110212218 is 81221201122.

It can be written as a sum of positive squares in 2 ways, for example, as 22060269729 + 49942489 = 148527^2 + 7067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22110212218² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22110212213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73788 + ... + 222856.

Almost surely, 2^22110212218 is an apocalyptic number.

22110212218 is a deficient number, since it is larger than the sum of its proper divisors (11055775802).

22110212218 is a wasteful number, since it uses less digits than its factorization.

22110212218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223232.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 22110212218 in words is "twenty-two billion, one hundred ten million, two hundred twelve thousand, two hundred eighteen".