1211210020223 has 8 divisors (see below), whose sum is σ = 1384278197280. Its totient is φ = 1038151386720.

The previous prime is 1211210020213. The next prime is 1211210020253. The reversal of 1211210020223 is 3220200121121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1211210020223 - 2⁸ = 1211210019967 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 (1211210020213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111828 + ... + 2623401.

It is an arithmetic number, because the mean of its divisors is an integer number (173034774660).

Almost surely, 2^{1211210020223} is an apocalyptic number.

1211210020223 is a deficient number, since it is larger than the sum of its proper divisors (173068177057).

1211210020223 is an equidigital number, since it uses as much as digits as its factorization.

1211210020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771777.

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

Adding to 1211210020223 its reverse (3220200121121), we get a palindrome (4431410141344).

The spelling of 1211210020223 in words is "one trillion, two hundred eleven billion, two hundred ten million, twenty thousand, two hundred twenty-three".