402212434223 has 4 divisors (see below), whose sum is σ = 402232333488. Its totient is φ = 402192534960.

The previous prime is 402212434187. The next prime is 402212434279. The reversal of 402212434223 is 322434212204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402212434223 - 2¹⁴ = 402212417839 is a prime.

It is a super-2 number, since 2×402212434223² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402212434523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9919283 + ... + 9959748.

It is an arithmetic number, because the mean of its divisors is an integer number (100558083372).

Almost surely, 2^402212434223 is an apocalyptic number.

402212434223 is a deficient number, since it is larger than the sum of its proper divisors (19899265).

402212434223 is a wasteful number, since it uses less digits than its factorization.

402212434223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19899264.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402212434223 its reverse (322434212204), we get a palindrome (724646646427).

The spelling of 402212434223 in words is "four hundred two billion, two hundred twelve million, four hundred thirty-four thousand, two hundred twenty-three".