1213211202223 has 16 divisors (see below), whose sum is σ = 1266052349952. Its totient is φ = 1161293400000.

The previous prime is 1213211202199. The next prime is 1213211202227. The reversal of 1213211202223 is 3222021123121.

It is a cyclic number.

It is not a de Polignac number, because 1213211202223 - 2²¹ = 1213209105071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213211202194 and 1213211202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213211202227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534498 + ... + 1646848.

It is an arithmetic number, because the mean of its divisors is an integer number (79128271872).

Almost surely, 2^{1213211202223} is an apocalyptic number.

1213211202223 is a deficient number, since it is larger than the sum of its proper divisors (52841147729).

1213211202223 is a wasteful number, since it uses less digits than its factorization.

1213211202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112766.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1213211202223 its reverse (3222021123121), we get a palindrome (4435232325344).

The spelling of 1213211202223 in words is "one trillion, two hundred thirteen billion, two hundred eleven million, two hundred two thousand, two hundred twenty-three".