20212122200023 has 4 divisors (see below), whose sum is σ = 21766900830808. Its totient is φ = 18657343569240.

The previous prime is 20212122200003. The next prime is 20212122200059. The reversal of 20212122200023 is 32000222121202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212122200023 - 2¹³ = 20212122191831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212122200003) 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, 777389315373 + ... + 777389315398.

It is an arithmetic number, because the mean of its divisors is an integer number (5441725207702).

Almost surely, 2^{20212122200023} is an apocalyptic number.

20212122200023 is a deficient number, since it is larger than the sum of its proper divisors (1554778630785).

20212122200023 is a wasteful number, since it uses less digits than its factorization.

20212122200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554778630784.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20212122200023 its reverse (32000222121202), we get a palindrome (52212344321225).

The spelling of 20212122200023 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-two million, two hundred thousand, twenty-three".