2201311233221 has 16 divisors (see below), whose sum is σ = 2348068531200. Its totient is φ = 2057707700208.

The previous prime is 2201311233179. The next prime is 2201311233283. The reversal of 2201311233221 is 1223321131022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201311233221 is a prime.

It is a super-2 number, since 2×2201311233221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201311233721) 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, 354260 + ... + 2127938.

It is an arithmetic number, because the mean of its divisors is an integer number (146754283200).

Almost surely, 2^{2201311233221} is an apocalyptic number.

It is an amenable number.

2201311233221 is a deficient number, since it is larger than the sum of its proper divisors (146757297979).

2201311233221 is a wasteful number, since it uses less digits than its factorization.

2201311233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774568.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2201311233221 its reverse (1223321131022), we get a palindrome (3424632364243).

The spelling of 2201311233221 in words is "two trillion, two hundred one billion, three hundred eleven million, two hundred thirty-three thousand, two hundred twenty-one".