1321121231322 has 32 divisors (see below), whose sum is σ = 2678542328448. Its totient is φ = 434324238336.

The previous prime is 1321121231279. The next prime is 1321121231347. The reversal of 1321121231322 is 2231321211231.

It is a super-2 number, since 2×1321121231322² (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 = 1321121231292 and 1321121231301.

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, 16368538 + ... + 16449050.

It is an arithmetic number, because the mean of its divisors is an integer number (83704447764).

Almost surely, 2^{1321121231322} is an apocalyptic number.

1321121231322 is an abundant number, since it is smaller than the sum of its proper divisors (1357421097126).

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

1321121231322 is a wasteful number, since it uses less digits than its factorization.

1321121231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118054.

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

Adding to 1321121231322 its reverse (2231321211231), we get a palindrome (3552442442553).

The spelling of 1321121231322 in words is "one trillion, three hundred twenty-one billion, one hundred twenty-one million, two hundred thirty-one thousand, three hundred twenty-two".