212021001023 has 8 divisors (see below), whose sum is σ = 228536212800. Its totient is φ = 195535204128.

The previous prime is 212021001011. The next prime is 212021001041. The reversal of 212021001023 is 320100120212.

It is a happy number.

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 212021001023 - 2⁸ = 212021000767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021000989 and 212021001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021001623) 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, 7338743 + ... + 7367576.

It is an arithmetic number, because the mean of its divisors is an integer number (28567026600).

Almost surely, 2^212021001023 is an apocalyptic number.

212021001023 is a deficient number, since it is larger than the sum of its proper divisors (16515211777).

212021001023 is a wasteful number, since it uses less digits than its factorization.

212021001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14707441.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212021001023 its reverse (320100120212), we get a palindrome (532121121235).

The spelling of 212021001023 in words is "two hundred twelve billion, twenty-one million, one thousand, twenty-three".