212001210023 has 4 divisors (see below), whose sum is σ = 212014362120. Its totient is φ = 211988057928.

The previous prime is 212001210011. The next prime is 212001210067. The reversal of 212001210023 is 320012100212.

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 212001210023 - 2¹⁰ = 212001208999 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 (212001210623) 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, 6551840 + ... + 6584117.

It is an arithmetic number, because the mean of its divisors is an integer number (53003590530).

Almost surely, 2^212001210023 is an apocalyptic number.

212001210023 is a deficient number, since it is larger than the sum of its proper divisors (13152097).

212001210023 is a wasteful number, since it uses less digits than its factorization.

212001210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13152096.

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

Adding to 212001210023 its reverse (320012100212), we get a palindrome (532013310235).

The spelling of 212001210023 in words is "two hundred twelve billion, one million, two hundred ten thousand, twenty-three".