212212274423 has 4 divisors (see below), whose sum is σ = 212226887040. Its totient is φ = 212197661808.

The previous prime is 212212274389. The next prime is 212212274429. The reversal of 212212274423 is 324472212212.

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 212212274423 - 2¹⁸ = 212212012279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212212274423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212274429) 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, 7284503 + ... + 7313576.

It is an arithmetic number, because the mean of its divisors is an integer number (53056721760).

Almost surely, 2^212212274423 is an apocalyptic number.

212212274423 is a deficient number, since it is larger than the sum of its proper divisors (14612617).

212212274423 is a wasteful number, since it uses less digits than its factorization.

212212274423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14612616.

The product of its digits is 21504, while the sum is 32.

Adding to 212212274423 its reverse (324472212212), we get a palindrome (536684486635).

The spelling of 212212274423 in words is "two hundred twelve billion, two hundred twelve million, two hundred seventy-four thousand, four hundred twenty-three".