2225630020981 has 2 divisors, whose sum is σ = 2225630020982. Its totient is φ = 2225630020980.

The previous prime is 2225630020961. The next prime is 2225630021003. The reversal of 2225630020981 is 1890200365222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1794822884100 + 430807136881 = 1339710^2 + 656359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2225630020981 - 2¹⁵ = 2225629988213 is a prime.

It is a super-2 number, since 2×2225630020981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2225630020921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112815010490 + 1112815010491.

It is an arithmetic number, because the mean of its divisors is an integer number (1112815010491).

Almost surely, 2^{2225630020981} is an apocalyptic number.

It is an amenable number.

2225630020981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2225630020981 is an equidigital number, since it uses as much as digits as its factorization.

2225630020981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 2225630020981 in words is "two trillion, two hundred twenty-five billion, six hundred thirty million, twenty thousand, nine hundred eighty-one".