22220245418 has 32 divisors (see below), whose sum is σ = 38680965504. Its totient is φ = 9375835392.

The previous prime is 22220245367. The next prime is 22220245427. The reversal of 22220245418 is 81454202222.

It is a super-2 number, since 2×22220245418² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2149430 + ... + 2159742.

It is an arithmetic number, because the mean of its divisors is an integer number (1208780172).

Almost surely, 2^22220245418 is an apocalyptic number.

22220245418 is a deficient number, since it is larger than the sum of its proper divisors (16460720086).

22220245418 is a wasteful number, since it uses less digits than its factorization.

22220245418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12686.

The product of its (nonzero) digits is 20480, while the sum is 32.

The spelling of 22220245418 in words is "twenty-two billion, two hundred twenty million, two hundred forty-five thousand, four hundred eighteen".