402212406269 has 2 divisors, whose sum is σ = 402212406270. Its totient is φ = 402212406268.

The previous prime is 402212406223. The next prime is 402212406289. The reversal of 402212406269 is 962604212204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231447588100 + 170764818169 = 481090^2 + 413237^2 .

It is a cyclic number.

It is not a de Polignac number, because 402212406269 - 2²⁴ = 402195629053 is a prime.

It is a super-2 number, since 2×402212406269² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402212406289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201106203134 + 201106203135.

It is an arithmetic number, because the mean of its divisors is an integer number (201106203135).

Almost surely, 2^402212406269 is an apocalyptic number.

It is an amenable number.

402212406269 is a deficient number, since it is larger than the sum of its proper divisors (1).

402212406269 is an equidigital number, since it uses as much as digits as its factorization.

402212406269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 402212406269 in words is "four hundred two billion, two hundred twelve million, four hundred six thousand, two hundred sixty-nine".