1213232402201 has 4 divisors (see below), whose sum is σ = 1217742560100. Its totient is φ = 1208722244304.

The previous prime is 1213232402197. The next prime is 1213232402227. The reversal of 1213232402201 is 1022042323121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 151106348176 + 1062126054025 = 388724^2 + 1030595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213232402201 - 2² = 1213232402197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213232402281) 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, 2255078546 + ... + 2255079083.

It is an arithmetic number, because the mean of its divisors is an integer number (304435640025).

Almost surely, 2^{1213232402201} is an apocalyptic number.

It is an amenable number.

1213232402201 is a deficient number, since it is larger than the sum of its proper divisors (4510157899).

1213232402201 is an equidigital number, since it uses as much as digits as its factorization.

1213232402201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510157898.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1213232402201 its reverse (1022042323121), we get a palindrome (2235274725322).

The spelling of 1213232402201 in words is "one trillion, two hundred thirteen billion, two hundred thirty-two million, four hundred two thousand, two hundred one".