22231310442 has 16 divisors (see below), whose sum is σ = 48504677472. Its totient is φ = 6736760720.

The previous prime is 22231310407. The next prime is 22231310461. The reversal of 22231310442 is 24401313222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168418953 + ... + 168419084.

It is an arithmetic number, because the mean of its divisors is an integer number (3031542342).

Almost surely, 2^22231310442 is an apocalyptic number.

22231310442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22231310442 is an abundant number, since it is smaller than the sum of its proper divisors (26273367030).

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

22231310442 is a wasteful number, since it uses less digits than its factorization.

22231310442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336838053.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22231310442 its reverse (24401313222), we get a palindrome (46632623664).

The spelling of 22231310442 in words is "twenty-two billion, two hundred thirty-one million, three hundred ten thousand, four hundred forty-two".