202102212023 has 16 divisors (see below), whose sum is σ = 205692490080. Its totient is φ = 198546702336.

The previous prime is 202102212017. The next prime is 202102212029. The reversal of 202102212023 is 320212201202.

It is an interprime number because it is at equal distance from previous prime (202102212017) and next prime (202102212029).

It is a cyclic number.

It is not a de Polignac number, because 202102212023 - 2¹² = 202102207927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202102211992 and 202102212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102212029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10008365 + ... + 10028537.

It is an arithmetic number, because the mean of its divisors is an integer number (12855780630).

Almost surely, 2^202102212023 is an apocalyptic number.

202102212023 is a deficient number, since it is larger than the sum of its proper divisors (3590278057).

202102212023 is a wasteful number, since it uses less digits than its factorization.

202102212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21026.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 202102212023 its reverse (320212201202), we get a palindrome (522314413225).

The spelling of 202102212023 in words is "two hundred two billion, one hundred two million, two hundred twelve thousand, twenty-three".