212220100223 has 2 divisors, whose sum is σ = 212220100224. Its totient is φ = 212220100222.

The previous prime is 212220100199. The next prime is 212220100243. The reversal of 212220100223 is 322001022212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212220100223 - 2⁶ = 212220100159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212220100243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110050111 + 106110050112.

It is an arithmetic number, because the mean of its divisors is an integer number (106110050112).

Almost surely, 2^212220100223 is an apocalyptic number.

212220100223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220100223 is an equidigital number, since it uses as much as digits as its factorization.

212220100223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212220100223 its reverse (322001022212), we get a palindrome (534221122435).

The spelling of 212220100223 in words is "two hundred twelve billion, two hundred twenty million, one hundred thousand, two hundred twenty-three".