1321211311202 has 8 divisors (see below), whose sum is σ = 1991209464912. Its totient is φ = 657474822900.

The previous prime is 1321211311193. The next prime is 1321211311237. The reversal of 1321211311202 is 2021131121231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565415824 + ... + 1565416667.

It is an arithmetic number, because the mean of its divisors is an integer number (248901183114).

Almost surely, 2^{1321211311202} is an apocalyptic number.

1321211311202 is a deficient number, since it is larger than the sum of its proper divisors (669998153710).

1321211311202 is a wasteful number, since it uses less digits than its factorization.

1321211311202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130832704.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1321211311202 its reverse (2021131121231), we get a palindrome (3342342432433).

The spelling of 1321211311202 in words is "one trillion, three hundred twenty-one billion, two hundred eleven million, three hundred eleven thousand, two hundred two".