212223123019 has 2 divisors, whose sum is σ = 212223123020. Its totient is φ = 212223123018.

The previous prime is 212223122977. The next prime is 212223123127. The reversal of 212223123019 is 910321322212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212223123019 - 2¹⁷ = 212222991947 is a prime.

It is a super-2 number, since 2×212223123019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212223123419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111561509 + 106111561510.

It is an arithmetic number, because the mean of its divisors is an integer number (106111561510).

Almost surely, 2^212223123019 is an apocalyptic number.

212223123019 is a deficient number, since it is larger than the sum of its proper divisors (1).

212223123019 is an equidigital number, since it uses as much as digits as its factorization.

212223123019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 212223123019 in words is "two hundred twelve billion, two hundred twenty-three million, one hundred twenty-three thousand, nineteen".