2221012531393 has 2 divisors, whose sum is σ = 2221012531394. Its totient is φ = 2221012531392.

The previous prime is 2221012531379. The next prime is 2221012531421. The reversal of 2221012531393 is 3931352101222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230286927489 + 990725603904 = 1109183^2 + 995352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221012531393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221012531333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110506265696 + 1110506265697.

It is an arithmetic number, because the mean of its divisors is an integer number (1110506265697).

Almost surely, 2^{2221012531393} is an apocalyptic number.

It is an amenable number.

2221012531393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221012531393 is an equidigital number, since it uses as much as digits as its factorization.

2221012531393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 2221012531393 in words is "two trillion, two hundred twenty-one billion, twelve million, five hundred thirty-one thousand, three hundred ninety-three".