402224121331 has 2 divisors, whose sum is σ = 402224121332. Its totient is φ = 402224121330.

The previous prime is 402224121329. The next prime is 402224121349. The reversal of 402224121331 is 133121422204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402224121331 - 2¹ = 402224121329 is a prime.

It is a super-2 number, since 2×402224121331² (a number of 24 digits) contains 22 as substring.

Together with 402224121329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 402224121296 and 402224121305.

It is not a weakly prime, because it can be changed into another prime (402224121311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201112060665 + 201112060666.

It is an arithmetic number, because the mean of its divisors is an integer number (201112060666).

Almost surely, 2^402224121331 is an apocalyptic number.

402224121331 is a deficient number, since it is larger than the sum of its proper divisors (1).

402224121331 is an equidigital number, since it uses as much as digits as its factorization.

402224121331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 402224121331 its reverse (133121422204), we get a palindrome (535345543535).

The spelling of 402224121331 in words is "four hundred two billion, two hundred twenty-four million, one hundred twenty-one thousand, three hundred thirty-one".