22220646404 has 12 divisors (see below), whose sum is σ = 42421234128. Its totient is φ = 10100293800.

The previous prime is 22220646401. The next prime is 22220646431. The reversal of 22220646404 is 40464602222.

It is a super-2 number, since 2×22220646404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22220646401) 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, 252507302 + ... + 252507389.

It is an arithmetic number, because the mean of its divisors is an integer number (3535102844).

Almost surely, 2^22220646404 is an apocalyptic number.

It is an amenable number.

22220646404 is a deficient number, since it is larger than the sum of its proper divisors (20200587724).

22220646404 is a wasteful number, since it uses less digits than its factorization.

22220646404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505014706 (or 505014704 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 22220646404 in words is "twenty-two billion, two hundred twenty million, six hundred forty-six thousand, four hundred four".