10225477452221 has 2 divisors, whose sum is σ = 10225477452222. Its totient is φ = 10225477452220.

The previous prime is 10225477452187. The next prime is 10225477452227. The reversal of 10225477452221 is 12225477452201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9567026349721 + 658451102500 = 3093061^2 + 811450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10225477452221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10225477452227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5112738726110 + 5112738726111.

It is an arithmetic number, because the mean of its divisors is an integer number (5112738726111).

Almost surely, 2^{10225477452221} is an apocalyptic number.

It is an amenable number.

10225477452221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10225477452221 is an equidigital number, since it uses as much as digits as its factorization.

10225477452221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 627200, while the sum is 44.

The spelling of 10225477452221 in words is "ten trillion, two hundred twenty-five billion, four hundred seventy-seven million, four hundred fifty-two thousand, two hundred twenty-one".