230402410211221 has 4 divisors (see below), whose sum is σ = 230402861975392. Its totient is φ = 230401958447052.

The previous prime is 230402410211107. The next prime is 230402410211249. The reversal of 230402410211221 is 122112014204032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230402410211221 is a prime.

It is a super-2 number, since 2×230402410211221² (a number of 30 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 (230402410211261) 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, 225116211 + ... + 226137376.

It is an arithmetic number, because the mean of its divisors is an integer number (57600715493848).

Almost surely, 2^{230402410211221} is an apocalyptic number.

It is an amenable number.

230402410211221 is a deficient number, since it is larger than the sum of its proper divisors (451764171).

230402410211221 is an equidigital number, since it uses as much as digits as its factorization.

230402410211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451764170.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 230402410211221 its reverse (122112014204032), we get a palindrome (352514424415253).

The spelling of 230402410211221 in words is "two hundred thirty trillion, four hundred two billion, four hundred ten million, two hundred eleven thousand, two hundred twenty-one".