3212120111011 has 4 divisors (see below), whose sum is σ = 3670994412592. Its totient is φ = 2753245809432.

The previous prime is 3212120110981. The next prime is 3212120111023. The reversal of 3212120111011 is 1101110212123.

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-3212120111011 is a prime.

It is a super-2 number, since 2×3212120111011² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3212120111051) 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, 229437150780 + ... + 229437150793.

It is an arithmetic number, because the mean of its divisors is an integer number (917748603148).

Almost surely, 2^{3212120111011} is an apocalyptic number.

3212120111011 is a deficient number, since it is larger than the sum of its proper divisors (458874301581).

3212120111011 is an equidigital number, since it uses as much as digits as its factorization.

3212120111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458874301580.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 3212120111011 its reverse (1101110212123), we get a palindrome (4313230323134).

The spelling of 3212120111011 in words is "three trillion, two hundred twelve billion, one hundred twenty million, one hundred eleven thousand, eleven".