1213003232211 has 4 divisors (see below), whose sum is σ = 1617337642952. Its totient is φ = 808668821472.

The previous prime is 1213003232141. The next prime is 1213003232251. The reversal of 1213003232211 is 1122323003121.

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

It is a de Polignac number, because none of the positive numbers 2^k-1213003232211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213003232251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202167205366 + ... + 202167205371.

It is an arithmetic number, because the mean of its divisors is an integer number (404334410738).

Almost surely, 2^{1213003232211} is an apocalyptic number.

1213003232211 is a deficient number, since it is larger than the sum of its proper divisors (404334410741).

1213003232211 is an equidigital number, since it uses as much as digits as its factorization.

1213003232211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404334410740.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213003232211 its reverse (1122323003121), we get a palindrome (2335326235332).

The spelling of 1213003232211 in words is "one trillion, two hundred thirteen billion, three million, two hundred thirty-two thousand, two hundred eleven".