222021012444 has 48 divisors (see below), whose sum is σ = 645879311616. Its totient is φ = 57667795200.

The previous prime is 222021012439. The next prime is 222021012457. The reversal of 222021012444 is 444210120222.

It is a happy number.

It is a congruent number.

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, 120140317 + ... + 120142164.

It is an arithmetic number, because the mean of its divisors is an integer number (13455818992).

Almost surely, 2^222021012444 is an apocalyptic number.

It is an amenable number.

222021012444 is an abundant number, since it is smaller than the sum of its proper divisors (423858299172).

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

222021012444 is a wasteful number, since it uses less digits than its factorization.

222021012444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240282506 (or 240282504 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222021012444 its reverse (444210120222), we get a palindrome (666231132666).

The spelling of 222021012444 in words is "two hundred twenty-two billion, twenty-one million, twelve thousand, four hundred forty-four".