3211012021211 has 4 divisors (see below), whose sum is σ = 3289329387624. Its totient is φ = 3132694654800.

The previous prime is 3211012021193. The next prime is 3211012021249. The reversal of 3211012021211 is 1121202101123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3211012021211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3211012021211.

It is not an unprimeable number, because it can be changed into a prime (3211012020211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39158683145 + ... + 39158683226.

It is an arithmetic number, because the mean of its divisors is an integer number (822332346906).

Almost surely, 2^{3211012021211} is an apocalyptic number.

3211012021211 is a deficient number, since it is larger than the sum of its proper divisors (78317366413).

3211012021211 is an equidigital number, since it uses as much as digits as its factorization.

3211012021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78317366412.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 3211012021211 its reverse (1121202101123), we get a palindrome (4332214122334).

The spelling of 3211012021211 in words is "three trillion, two hundred eleven billion, twelve million, twenty-one thousand, two hundred eleven".