22121231322 has 16 divisors (see below), whose sum is σ = 44245424160. Its totient is φ = 7373250192.

The previous prime is 22121231303. The next prime is 22121231339. The reversal of 22121231322 is 22313212122.

It is a nude number because it is divisible by every one of its digits.

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, 19572 + ... + 211247.

It is an arithmetic number, because the mean of its divisors is an integer number (2765339010).

Almost surely, 2^22121231322 is an apocalyptic number.

22121231322 is an abundant number, since it is smaller than the sum of its proper divisors (22124192838).

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

22121231322 is a wasteful number, since it uses less digits than its factorization.

22121231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246797.

The product of its digits is 576, while the sum is 21.

Adding to 22121231322 its reverse (22313212122), we get a palindrome (44434443444).

The spelling of 22121231322 in words is "twenty-two billion, one hundred twenty-one million, two hundred thirty-one thousand, three hundred twenty-two".