22281886048861 has 2 divisors, whose sum is σ = 22281886048862. Its totient is φ = 22281886048860.

The previous prime is 22281886048717. The next prime is 22281886048927. The reversal of 22281886048861 is 16884068818222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22011063644025 + 270822404836 = 4691595^2 + 520406^2 .

It is a cyclic number.

It is not a de Polignac number, because 22281886048861 - 2¹⁷ = 22281885917789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22281886048793 and 22281886048802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22281886028861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11140943024430 + 11140943024431.

It is an arithmetic number, because the mean of its divisors is an integer number (11140943024431).

Almost surely, 2^{22281886048861} is an apocalyptic number.

It is an amenable number.

22281886048861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22281886048861 is an equidigital number, since it uses as much as digits as its factorization.

22281886048861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37748736, while the sum is 64.

The spelling of 22281886048861 in words is "twenty-two trillion, two hundred eighty-one billion, eight hundred eighty-six million, forty-eight thousand, eight hundred sixty-one".