2201131220213 has 4 divisors (see below), whose sum is σ = 2202910632300. Its totient is φ = 2199351808128.

The previous prime is 2201131220147. The next prime is 2201131220219. The reversal of 2201131220213 is 3120221311022.

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 1917333163684 + 283798056529 = 1384678^2 + 532727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201131220213 - 2³⁸ = 1926253313269 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 (2201131220219) 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, 889704188 + ... + 889706661.

It is an arithmetic number, because the mean of its divisors is an integer number (550727658075).

Almost surely, 2^{2201131220213} is an apocalyptic number.

It is an amenable number.

2201131220213 is a deficient number, since it is larger than the sum of its proper divisors (1779412087).

2201131220213 is a wasteful number, since it uses less digits than its factorization.

2201131220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779412086.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2201131220213 its reverse (3120221311022), we get a palindrome (5321352531235).

The spelling of 2201131220213 in words is "two trillion, two hundred one billion, one hundred thirty-one million, two hundred twenty thousand, two hundred thirteen".