402222431461 has 2 divisors, whose sum is σ = 402222431462. Its totient is φ = 402222431460.

The previous prime is 402222431417. The next prime is 402222431519. The reversal of 402222431461 is 164134222204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207945120100 + 194277311361 = 456010^2 + 440769^2 .

It is a cyclic number.

It is not a de Polignac number, because 402222431461 - 2¹³ = 402222423269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402222431761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201111215730 + 201111215731.

It is an arithmetic number, because the mean of its divisors is an integer number (201111215731).

Almost surely, 2^402222431461 is an apocalyptic number.

It is an amenable number.

402222431461 is a deficient number, since it is larger than the sum of its proper divisors (1).

402222431461 is an equidigital number, since it uses as much as digits as its factorization.

402222431461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 402222431461 its reverse (164134222204), we get a palindrome (566356653665).

The spelling of 402222431461 in words is "four hundred two billion, two hundred twenty-two million, four hundred thirty-one thousand, four hundred sixty-one".