3212311221021 has 32 divisors (see below), whose sum is σ = 5067463737600. Its totient is φ = 1771006970880.

The previous prime is 3212311220981. The next prime is 3212311221037. The reversal of 3212311221021 is 1201221132123.

It is not a de Polignac number, because 3212311221021 - 2²² = 3212307026717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212311221061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1108966 + ... + 2766663.

It is an arithmetic number, because the mean of its divisors is an integer number (158358241800).

Almost surely, 2^{3212311221021} is an apocalyptic number.

It is an amenable number.

3212311221021 is a deficient number, since it is larger than the sum of its proper divisors (1855152516579).

3212311221021 is a wasteful number, since it uses less digits than its factorization.

3212311221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877029.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 3212311221021 its reverse (1201221132123), we get a palindrome (4413532353144).

The spelling of 3212311221021 in words is "three trillion, two hundred twelve billion, three hundred eleven million, two hundred twenty-one thousand, twenty-one".