222242220444 has 24 divisors (see below), whose sum is σ = 518996992528. Its totient is φ = 74019052800.

The previous prime is 222242220443. The next prime is 222242220469. The reversal of 222242220444 is 444022242222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222242220443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7695907 + ... + 7724730.

Almost surely, 2^222242220444 is an apocalyptic number.

It is an amenable number.

222242220444 is an abundant number, since it is smaller than the sum of its proper divisors (296754772084).

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

222242220444 is a wasteful number, since it uses less digits than its factorization.

222242220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15421845 (or 15421843 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 222242220444 its reverse (444022242222), we get a palindrome (666264462666).

The spelling of 222242220444 in words is "two hundred twenty-two billion, two hundred forty-two million, two hundred twenty thousand, four hundred forty-four".