32001221002981 has 2 divisors, whose sum is σ = 32001221002982. Its totient is φ = 32001221002980.

The previous prime is 32001221002903. The next prime is 32001221003077. The reversal of 32001221002981 is 18920012210023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31976378514756 + 24842488225 = 5654766^2 + 157615^2 .

It is a cyclic number.

It is not a de Polignac number, because 32001221002981 - 2¹⁹ = 32001220478693 is a prime.

It is a super-2 number, since 2×32001221002981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32001221002781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16000610501490 + 16000610501491.

It is an arithmetic number, because the mean of its divisors is an integer number (16000610501491).

Almost surely, 2^{32001221002981} is an apocalyptic number.

It is an amenable number.

32001221002981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32001221002981 is an equidigital number, since it uses as much as digits as its factorization.

32001221002981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 32001221002981 in words is "thirty-two trillion, one billion, two hundred twenty-one million, two thousand, nine hundred eighty-one".