212332100223 has 4 divisors (see below), whose sum is σ = 283109466968. Its totient is φ = 141554733480.

The previous prime is 212332100209. The next prime is 212332100291. The reversal of 212332100223 is 322001233212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212332100223 - 2¹² = 212332096127 is a prime.

It is a super-2 number, since 2×212332100223² (a number of 23 digits) contains 22 as substring.

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 212332100223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212332100023) 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, 35388683368 + ... + 35388683373.

It is an arithmetic number, because the mean of its divisors is an integer number (70777366742).

Almost surely, 2^212332100223 is an apocalyptic number.

212332100223 is a deficient number, since it is larger than the sum of its proper divisors (70777366745).

212332100223 is an equidigital number, since it uses as much as digits as its factorization.

212332100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70777366744.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212332100223 its reverse (322001233212), we get a palindrome (534333333435).

The spelling of 212332100223 in words is "two hundred twelve billion, three hundred thirty-two million, one hundred thousand, two hundred twenty-three".