1212010111223 has 2 divisors, whose sum is σ = 1212010111224. Its totient is φ = 1212010111222.

The previous prime is 1212010111199. The next prime is 1212010111229. The reversal of 1212010111223 is 3221110102121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3221110102121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212010111223 - 2⁸ = 1212010110967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212010111229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606005055611 + 606005055612.

It is an arithmetic number, because the mean of its divisors is an integer number (606005055612).

Almost surely, 2^{1212010111223} is an apocalyptic number.

1212010111223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212010111223 is an equidigital number, since it uses as much as digits as its factorization.

1212010111223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1212010111223 its reverse (3221110102121), we get a palindrome (4433120213344).

The spelling of 1212010111223 in words is "one trillion, two hundred twelve billion, ten million, one hundred eleven thousand, two hundred twenty-three".