23212033021 has 8 divisors (see below), whose sum is σ = 24736598784. Its totient is φ = 21730412880.

The previous prime is 23212033001. The next prime is 23212033111. The reversal of 23212033021 is 12033021232.

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

It is not a de Polignac number, because 23212033021 - 2⁵ = 23212032989 is a prime.

It is a super-3 number, since 3×23212033021³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23212033021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212033001) 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, 10735290 + ... + 10737451.

It is an arithmetic number, because the mean of its divisors is an integer number (3092074848).

Almost surely, 2^23212033021 is an apocalyptic number.

It is an amenable number.

23212033021 is a deficient number, since it is larger than the sum of its proper divisors (1524565763).

23212033021 is a wasteful number, since it uses less digits than its factorization.

23212033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21472811.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23212033021 its reverse (12033021232), we get a palindrome (35245054253).

The spelling of 23212033021 in words is "twenty-three billion, two hundred twelve million, thirty-three thousand, twenty-one".