212131102223 has 8 divisors (see below), whose sum is σ = 222075224448. Its totient is φ = 202247065944.

The previous prime is 212131102219. The next prime is 212131102247. The reversal of 212131102223 is 322201131212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212131102223 - 2² = 212131102219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212131102195 and 212131102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212131102123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15014261 + ... + 15028382.

It is an arithmetic number, because the mean of its divisors is an integer number (27759403056).

Almost surely, 2^212131102223 is an apocalyptic number.

212131102223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212131102223 is a deficient number, since it is larger than the sum of its proper divisors (9944122225).

212131102223 is a wasteful number, since it uses less digits than its factorization.

212131102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30042973.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212131102223 its reverse (322201131212), we get a palindrome (534332233435).

The spelling of 212131102223 in words is "two hundred twelve billion, one hundred thirty-one million, one hundred two thousand, two hundred twenty-three".