212001210223 has 4 divisors (see below), whose sum is σ = 231274047528. Its totient is φ = 192728372920.

The previous prime is 212001210181. The next prime is 212001210271. The reversal of 212001210223 is 322012100212.

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 212001210223 - 2¹⁷ = 212001079151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212001210197 and 212001210206.

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, 9636418636 + ... + 9636418657.

It is an arithmetic number, because the mean of its divisors is an integer number (57818511882).

Almost surely, 2^212001210223 is an apocalyptic number.

212001210223 is a deficient number, since it is larger than the sum of its proper divisors (19272837305).

212001210223 is a wasteful number, since it uses less digits than its factorization.

212001210223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272837304.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212001210223 its reverse (322012100212), we get a palindrome (534013310435).

It can be divided in two parts, 212001 and 210223, that added together give a palindrome (422224).

The spelling of 212001210223 in words is "two hundred twelve billion, one million, two hundred ten thousand, two hundred twenty-three".