1321211321322 has 16 divisors (see below), whose sum is σ = 2642538543840. Its totient is φ = 440384456912.

The previous prime is 1321211321239. The next prime is 1321211321389. The reversal of 1321211321322 is 2231231121231.

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 = 1321211321292 and 1321211321301.

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, 4680672 + ... + 4954907.

It is an arithmetic number, because the mean of its divisors is an integer number (165158658990).

Almost surely, 2^{1321211321322} is an apocalyptic number.

1321211321322 is an abundant number, since it is smaller than the sum of its proper divisors (1321327222518).

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

1321211321322 is a wasteful number, since it uses less digits than its factorization.

1321211321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658437.

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

Adding to 1321211321322 its reverse (2231231121231), we get a palindrome (3552442442553).

The spelling of 1321211321322 in words is "one trillion, three hundred twenty-one billion, two hundred eleven million, three hundred twenty-one thousand, three hundred twenty-two".