2221302220331 has 4 divisors (see below), whose sum is σ = 2221404122712. Its totient is φ = 2221200317952.

The previous prime is 2221302220303. The next prime is 2221302220441. The reversal of 2221302220331 is 1330222031222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221302220331 is a prime.

It is a super-2 number, since 2×2221302220331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221302220297 and 2221302220306.

It is not an unprimeable number, because it can be changed into a prime (2221302240331) 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, 50918486 + ... + 50962091.

It is an arithmetic number, because the mean of its divisors is an integer number (555351030678).

Almost surely, 2^{2221302220331} is an apocalyptic number.

2221302220331 is a deficient number, since it is larger than the sum of its proper divisors (101902381).

2221302220331 is a wasteful number, since it uses less digits than its factorization.

2221302220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101902380.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2221302220331 its reverse (1330222031222), we get a palindrome (3551524251553).

The spelling of 2221302220331 in words is "two trillion, two hundred twenty-one billion, three hundred two million, two hundred twenty thousand, three hundred thirty-one".