232211421 has 32 divisors (see below), whose sum is σ = 382448640. Its totient is φ = 138283200.

The previous prime is 232211401. The next prime is 232211437. The reversal of 232211421 is 124112232.

It is a happy number.

232211421 is a `hidden beast` number, since 2 + 32 + 211 + 421 = 666.

It is not a de Polignac number, because 232211421 - 2⁵ = 232211389 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 232211394 and 232211403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232211401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211 + ... + 21551.

It is an arithmetic number, because the mean of its divisors is an integer number (11951520).

Almost surely, 2^232211421 is an apocalyptic number.

It is an amenable number.

232211421 is a deficient number, since it is larger than the sum of its proper divisors (150237219).

232211421 is a wasteful number, since it uses less digits than its factorization.

232211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21394 (or 21388 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 232211421 is about 15238.4848656289. The cubic root of 232211421 is about 614.6499614256.

Adding to 232211421 its reverse (124112232), we get a palindrome (356323653).

It can be divided in two parts, 23221 and 1421, that added together give a palindrome (24642).

The spelling of 232211421 in words is "two hundred thirty-two million, two hundred eleven thousand, four hundred twenty-one".