1321131123222 has 16 divisors (see below), whose sum is σ = 2643271930992. Its totient is φ = 440208760320.

The previous prime is 1321131123203. The next prime is 1321131123253. The reversal of 1321131123222 is 2223211311231.

It is a super-2 number, since 2×1321131123222² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1321131123192 and 1321131123201.

It is a congruent 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, 42053179 + ... + 42084582.

It is an arithmetic number, because the mean of its divisors is an integer number (165204495687).

Almost surely, 2^{1321131123222} is an apocalyptic number.

1321131123222 is an abundant number, since it is smaller than the sum of its proper divisors (1322140807770).

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

1321131123222 is a wasteful number, since it uses less digits than its factorization.

1321131123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84140383.

The product of its digits is 864, while the sum is 24.

Adding to 1321131123222 its reverse (2223211311231), we get a palindrome (3544342434453).

The spelling of 1321131123222 in words is "one trillion, three hundred twenty-one billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred twenty-two".