222402021444 has 18 divisors (see below), whose sum is σ = 562182887630. Its totient is φ = 74134007136.

The previous prime is 222402021421. The next prime is 222402021451. The reversal of 222402021444 is 444120204222.

222402021444 is a `hidden beast` number, since 2 + 2 + 2 + 402 + 0 + 214 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 209883096900 + 12518924544 = 458130^2 + 111888^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3088916929 + ... + 3088917000.

Almost surely, 2^222402021444 is an apocalyptic number.

It is an amenable number.

222402021444 is an abundant number, since it is smaller than the sum of its proper divisors (339780866186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222402021444 is a wasteful number, since it uses less digits than its factorization.

222402021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177833939 (or 6177833934 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 222402021444 its reverse (444120204222), we get a palindrome (666522225666).

The spelling of 222402021444 in words is "two hundred twenty-two billion, four hundred two million, twenty-one thousand, four hundred forty-four".