3120021012111 has 16 divisors (see below), whose sum is σ = 4212117112320. Its totient is φ = 2054081964960.

The previous prime is 3120021012067. The next prime is 3120021012149. The reversal of 3120021012111 is 1112101200213.

It is not a de Polignac number, because 3120021012111 - 2¹⁵ = 3120020979343 is a prime.

It is a super-2 number, since 2×3120021012111² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120021012181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13951960 + ... + 14173821.

It is an arithmetic number, because the mean of its divisors is an integer number (263257319520).

Almost surely, 2^{3120021012111} is an apocalyptic number.

3120021012111 is a deficient number, since it is larger than the sum of its proper divisors (1092096100209).

3120021012111 is a wasteful number, since it uses less digits than its factorization.

3120021012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28126246.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 3120021012111 its reverse (1112101200213), we get a palindrome (4232122212324).

The spelling of 3120021012111 in words is "three trillion, one hundred twenty billion, twenty-one million, twelve thousand, one hundred eleven".