1211210332223 has 4 divisors (see below), whose sum is σ = 1213232386800. Its totient is φ = 1209188277648.

The previous prime is 1211210332201. The next prime is 1211210332229. The reversal of 1211210332223 is 3222330121121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1211210332223 - 2⁶ = 1211210332159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211210332229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011026390 + ... + 1011027587.

It is an arithmetic number, because the mean of its divisors is an integer number (303308096700).

Almost surely, 2^{1211210332223} is an apocalyptic number.

1211210332223 is a deficient number, since it is larger than the sum of its proper divisors (2022054577).

1211210332223 is an equidigital number, since it uses as much as digits as its factorization.

1211210332223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022054576.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1211210332223 its reverse (3222330121121), we get a palindrome (4433540453344).

The spelling of 1211210332223 in words is "one trillion, two hundred eleven billion, two hundred ten million, three hundred thirty-two thousand, two hundred twenty-three".