15442221022 has 16 divisors (see below), whose sum is σ = 24950126592. Its totient is φ = 7147170360.

The previous prime is 15442221013. The next prime is 15442221023. The reversal of 15442221022 is 22012224451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15442221023) 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, 5413098 + ... + 5415949.

It is an arithmetic number, because the mean of its divisors is an integer number (1559382912).

Almost surely, 2^15442221022 is an apocalyptic number.

15442221022 is a deficient number, since it is larger than the sum of its proper divisors (9507905570).

15442221022 is a wasteful number, since it uses less digits than its factorization.

15442221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10829103.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 15442221022 its reverse (22012224451), we get a palindrome (37454445473).

The spelling of 15442221022 in words is "fifteen billion, four hundred forty-two million, two hundred twenty-one thousand, twenty-two".