1222321031344 has 80 divisors (see below), whose sum is σ = 2777695430400. Its totient is φ = 510248201472.

The previous prime is 1222321031311. The next prime is 1222321031353. The reversal of 1222321031344 is 4431301232221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128242 + ... + 1568785.

It is an arithmetic number, because the mean of its divisors is an integer number (34721192880).

Almost surely, 2^{1222321031344} is an apocalyptic number.

1222321031344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1222321031344 is an abundant number, since it is smaller than the sum of its proper divisors (1555374399056).

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

1222321031344 is a wasteful number, since it uses less digits than its factorization.

1222321031344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697210 (or 1697204 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1222321031344 its reverse (4431301232221), we get a palindrome (5653622263565).

The spelling of 1222321031344 in words is "one trillion, two hundred twenty-two billion, three hundred twenty-one million, thirty-one thousand, three hundred forty-four".