222015142544 has 20 divisors (see below), whose sum is σ = 463243134396. Its totient is φ = 102468527232.

The previous prime is 222015142541. The next prime is 222015142571. The reversal of 222015142544 is 445241510222.

It can be written as a sum of positive squares in 2 ways, for example, as 146851436944 + 75163705600 = 383212^2 + 274160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222015142544.

It is not an unprimeable number, because it can be changed into a prime (222015142541) 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, 533690039 + ... + 533690454.

Almost surely, 2^222015142544 is an apocalyptic number.

It is an amenable number.

222015142544 is an abundant number, since it is smaller than the sum of its proper divisors (241227991852).

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

222015142544 is a wasteful number, since it uses less digits than its factorization.

222015142544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067380514 (or 1067380508 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 222015142544 its reverse (445241510222), we get a palindrome (667256652766).

The spelling of 222015142544 in words is "two hundred twenty-two billion, fifteen million, one hundred forty-two thousand, five hundred forty-four".