2123312233021 has 8 divisors (see below), whose sum is σ = 2427857712000. Its totient is φ = 1819070544048.

The previous prime is 2123312233001. The next prime is 2123312233057. The reversal of 2123312233021 is 1203322133212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123312233021 - 2²⁵ = 2123278678589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123312233001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75932521 + ... + 75960478.

It is an arithmetic number, because the mean of its divisors is an integer number (303482214000).

Almost surely, 2^{2123312233021} is an apocalyptic number.

It is an amenable number.

2123312233021 is a deficient number, since it is larger than the sum of its proper divisors (304545478979).

2123312233021 is a wasteful number, since it uses less digits than its factorization.

2123312233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151895003.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2123312233021 its reverse (1203322133212), we get a palindrome (3326634366233).

The spelling of 2123312233021 in words is "two trillion, one hundred twenty-three billion, three hundred twelve million, two hundred thirty-three thousand, twenty-one".