250222081 has 2 divisors, whose sum is σ = 250222082. Its totient is φ = 250222080.

The previous prime is 250222079. The next prime is 250222087. The reversal of 250222081 is 180222052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141729025 + 108493056 = 11905^2 + 10416^2 .

It is a cyclic number.

It is not a de Polignac number, because 250222081 - 2¹ = 250222079 is a prime.

It is a super-2 number, since 2×250222081² = 125222179639941122, which contains 22 as substring.

Together with 250222079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (250222087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125111040 + 125111041.

It is an arithmetic number, because the mean of its divisors is an integer number (125111041).

Almost surely, 2^250222081 is an apocalyptic number.

It is an amenable number.

250222081 is a deficient number, since it is larger than the sum of its proper divisors (1).

250222081 is an equidigital number, since it uses as much as digits as its factorization.

250222081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 250222081 is about 15818.4095597503. The cubic root of 250222081 is about 630.1470060909.

The spelling of 250222081 in words is "two hundred fifty million, two hundred twenty-two thousand, eighty-one".