402212319997 has 2 divisors, whose sum is σ = 402212319998. Its totient is φ = 402212319996.

The previous prime is 402212319983. The next prime is 402212320031. The reversal of 402212319997 is 799913212204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391968653476 + 10243666521 = 626074^2 + 101211^2 .

It is a cyclic number.

It is not a de Polignac number, because 402212319997 - 2¹⁹ = 402211795709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402212319997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402212319097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201106159998 + 201106159999.

It is an arithmetic number, because the mean of its divisors is an integer number (201106159999).

Almost surely, 2^402212319997 is an apocalyptic number.

It is an amenable number.

402212319997 is a deficient number, since it is larger than the sum of its proper divisors (1).

402212319997 is an equidigital number, since it uses as much as digits as its factorization.

402212319997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 402212319997 in words is "four hundred two billion, two hundred twelve million, three hundred nineteen thousand, nine hundred ninety-seven".