402221445410231 has 4 divisors (see below), whose sum is σ = 402221498889264. Its totient is φ = 402221391931200.

The previous prime is 402221445410207. The next prime is 402221445410243. The reversal of 402221445410231 is 132014544122204.

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 402221445410231 - 2¹⁴ = 402221445393847 is a prime.

It is a super-2 number, since 2×402221445410231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402221445410191 and 402221445410200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402221445410201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13158635 + ... + 31266476.

It is an arithmetic number, because the mean of its divisors is an integer number (100555374722316).

Almost surely, 2^{402221445410231} is an apocalyptic number.

402221445410231 is a deficient number, since it is larger than the sum of its proper divisors (53479033).

402221445410231 is an equidigital number, since it uses as much as digits as its factorization.

402221445410231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53479032.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 402221445410231 its reverse (132014544122204), we get a palindrome (534235989532435).

The spelling of 402221445410231 in words is "four hundred two trillion, two hundred twenty-one billion, four hundred forty-five million, four hundred ten thousand, two hundred thirty-one".