212001211223 has 2 divisors, whose sum is σ = 212001211224. Its totient is φ = 212001211222.

The previous prime is 212001211207. The next prime is 212001211237. The reversal of 212001211223 is 322112100212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212001211223 - 2⁴ = 212001211207 is a prime.

It is a super-2 number, since 2×212001211223² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212001216223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000605611 + 106000605612.

It is an arithmetic number, because the mean of its divisors is an integer number (106000605612).

Almost surely, 2^212001211223 is an apocalyptic number.

212001211223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001211223 is an equidigital number, since it uses as much as digits as its factorization.

212001211223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212001211223 its reverse (322112100212), we get a palindrome (534113311435).

The spelling of 212001211223 in words is "two hundred twelve billion, one million, two hundred eleven thousand, two hundred twenty-three".