210012220023 has 4 divisors (see below), whose sum is σ = 280016293368. Its totient is φ = 140008146680.

The previous prime is 210012220007. The next prime is 210012220037. The reversal of 210012220023 is 320022210012.

It is a happy number.

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 210012220023 - 2⁴ = 210012220007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210012219984 and 210012220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012220823) 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, 35002036668 + ... + 35002036673.

It is an arithmetic number, because the mean of its divisors is an integer number (70004073342).

Almost surely, 2^210012220023 is an apocalyptic number.

210012220023 is a deficient number, since it is larger than the sum of its proper divisors (70004073345).

210012220023 is an equidigital number, since it uses as much as digits as its factorization.

210012220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70004073344.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 210012220023 its reverse (320022210012), we get a palindrome (530034430035).

The spelling of 210012220023 in words is "two hundred ten billion, twelve million, two hundred twenty thousand, twenty-three".