21212113322023 has 8 divisors (see below), whose sum is σ = 22843863531216. Its totient is φ = 19580370139200.

The previous prime is 21212113321999. The next prime is 21212113322027. The reversal of 21212113322023 is 32022331121212.

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

It is not a de Polignac number, because 21212113322023 - 2⁵ = 21212113321991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21212113322027) 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, 5679363 + ... + 8641723.

It is an arithmetic number, because the mean of its divisors is an integer number (2855482941402).

Almost surely, 2^{21212113322023} is an apocalyptic number.

21212113322023 is a deficient number, since it is larger than the sum of its proper divisors (1631750209193).

21212113322023 is a wasteful number, since it uses less digits than its factorization.

21212113322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513185.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21212113322023 its reverse (32022331121212), we get a palindrome (53234444443235).

The spelling of 21212113322023 in words is "twenty-one trillion, two hundred twelve billion, one hundred thirteen million, three hundred twenty-two thousand, twenty-three".