2311322302221 has 16 divisors (see below), whose sum is σ = 3155890062336. Its totient is φ = 1503873904176.

The previous prime is 2311322302193. The next prime is 2311322302271. The reversal of 2311322302221 is 1222032231132.

It is not a de Polignac number, because 2311322302221 - 2⁹ = 2311322301709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311322302191 and 2311322302200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311322302271) 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, 6817045 + ... + 7148058.

It is an arithmetic number, because the mean of its divisors is an integer number (197243128896).

Almost surely, 2^{2311322302221} is an apocalyptic number.

It is an amenable number.

2311322302221 is a deficient number, since it is larger than the sum of its proper divisors (844567760115).

2311322302221 is a wasteful number, since it uses less digits than its factorization.

2311322302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13966432.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2311322302221 its reverse (1222032231132), we get a palindrome (3533354533353).

The spelling of 2311322302221 in words is "two trillion, three hundred eleven billion, three hundred twenty-two million, three hundred two thousand, two hundred twenty-one".