212204120423 has 16 divisors (see below), whose sum is σ = 237146548320. Its totient is φ = 188702493696.

The previous prime is 212204120419. The next prime is 212204120431. The reversal of 212204120423 is 324021402212.

It is not a de Polignac number, because 212204120423 - 2² = 212204120419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212204120123) 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, 760190 + ... + 1001147.

It is an arithmetic number, because the mean of its divisors is an integer number (14821659270).

Almost surely, 2^212204120423 is an apocalyptic number.

212204120423 is a deficient number, since it is larger than the sum of its proper divisors (24942427897).

212204120423 is a wasteful number, since it uses less digits than its factorization.

212204120423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761746.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 212204120423 its reverse (324021402212), we get a palindrome (536225522635).

The spelling of 212204120423 in words is "two hundred twelve billion, two hundred four million, one hundred twenty thousand, four hundred twenty-three".