2120014402981 has 2 divisors, whose sum is σ = 2120014402982. Its totient is φ = 2120014402980.

The previous prime is 2120014402973. The next prime is 2120014403033. The reversal of 2120014402981 is 1892044100212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2108913884100 + 11100518881 = 1452210^2 + 105359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120014402981 - 2³ = 2120014402973 is a prime.

It is a super-3 number, since 3×2120014402981³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120014402921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060007201490 + 1060007201491.

It is an arithmetic number, because the mean of its divisors is an integer number (1060007201491).

Almost surely, 2^{2120014402981} is an apocalyptic number.

It is an amenable number.

2120014402981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120014402981 is an equidigital number, since it uses as much as digits as its factorization.

2120014402981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 2120014402981 in words is "two trillion, one hundred twenty billion, fourteen million, four hundred two thousand, nine hundred eighty-one".