1233210112021 has 2 divisors, whose sum is σ = 1233210112022. Its totient is φ = 1233210112020.

The previous prime is 1233210111937. The next prime is 1233210112039. The reversal of 1233210112021 is 1202110123321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 984718828900 + 248491283121 = 992330^2 + 498489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233210112021 - 2²⁵ = 1233176557589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1233210112021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233210112091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616605056010 + 616605056011.

It is an arithmetic number, because the mean of its divisors is an integer number (616605056011).

Almost surely, 2^{1233210112021} is an apocalyptic number.

It is an amenable number.

1233210112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233210112021 is an equidigital number, since it uses as much as digits as its factorization.

1233210112021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1233210112021 its reverse (1202110123321), we get a palindrome (2435320235342).

The spelling of 1233210112021 in words is "one trillion, two hundred thirty-three billion, two hundred ten million, one hundred twelve thousand, twenty-one".