402212999 has 2 divisors, whose sum is σ = 402213000. Its totient is φ = 402212998.

The previous prime is 402212989. The next prime is 402213011. The reversal of 402212999 is 999212204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402212999 - 2²⁸ = 133777543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402212939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201106499 + 201106500.

It is an arithmetic number, because the mean of its divisors is an integer number (201106500).

Almost surely, 2^402212999 is an apocalyptic number.

402212999 is a deficient number, since it is larger than the sum of its proper divisors (1).

402212999 is an equidigital number, since it uses as much as digits as its factorization.

402212999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 402212999 is about 20055.2486646264. The cubic root of 402212999 is about 738.1625945659.

The spelling of 402212999 in words is "four hundred two million, two hundred twelve thousand, nine hundred ninety-nine".