220142422444 has 24 divisors (see below), whose sum is σ = 442038981888. Its totient is φ = 93970866000.

The previous prime is 220142422439. The next prime is 220142422447. The reversal of 220142422444 is 444224241022.

It is not an unprimeable number, because it can be changed into a prime (220142422447) 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, 15654784 + ... + 15668839.

It is an arithmetic number, because the mean of its divisors is an integer number (18418290912).

Almost surely, 2^220142422444 is an apocalyptic number.

It is an amenable number.

220142422444 is an abundant number, since it is smaller than the sum of its proper divisors (221896559444).

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

220142422444 is a wasteful number, since it uses less digits than its factorization.

220142422444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31323885 (or 31323883 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 220142422444 its reverse (444224241022), we get a palindrome (664366663466).

The spelling of 220142422444 in words is "two hundred twenty billion, one hundred forty-two million, four hundred twenty-two thousand, four hundred forty-four".