232211120021 has 4 divisors (see below), whose sum is σ = 239701801344. Its totient is φ = 224720438700.

The previous prime is 232211120003. The next prime is 232211120039. The reversal of 232211120021 is 120021112232.

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 an interprime number because it is at equal distance from previous prime (232211120003) and next prime (232211120039).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232211120021 is a prime.

It is a super-2 number, since 2×232211120021² (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 (232211120041) 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, 3745340615 + ... + 3745340676.

It is an arithmetic number, because the mean of its divisors is an integer number (59925450336).

Almost surely, 2^232211120021 is an apocalyptic number.

It is an amenable number.

232211120021 is a deficient number, since it is larger than the sum of its proper divisors (7490681323).

232211120021 is an equidigital number, since it uses as much as digits as its factorization.

232211120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7490681322.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 232211120021 its reverse (120021112232), we get a palindrome (352232232253).

The spelling of 232211120021 in words is "two hundred thirty-two billion, two hundred eleven million, one hundred twenty thousand, twenty-one".