1210111221223 has 2 divisors, whose sum is σ = 1210111221224. Its totient is φ = 1210111221222.

The previous prime is 1210111221191. The next prime is 1210111221259. The reversal of 1210111221223 is 3221221110121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210111221223 - 2⁵ = 1210111221191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1210111221223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210111221623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605055610611 + 605055610612.

It is an arithmetic number, because the mean of its divisors is an integer number (605055610612).

Almost surely, 2^{1210111221223} is an apocalyptic number.

1210111221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210111221223 is an equidigital number, since it uses as much as digits as its factorization.

1210111221223 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 19.

Adding to 1210111221223 its reverse (3221221110121), we get a palindrome (4431332331344).

The spelling of 1210111221223 in words is "one trillion, two hundred ten billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twenty-three".