2221210112231 has 4 divisors (see below), whose sum is σ = 2423138304264. Its totient is φ = 2019281920200.

The previous prime is 2221210112207. The next prime is 2221210112237. The reversal of 2221210112231 is 1322110121222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221210112231 - 2⁶ = 2221210112167 is a prime.

It is a super-2 number, since 2×2221210112231² (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 (2221210112237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100964096000 + ... + 100964096021.

It is an arithmetic number, because the mean of its divisors is an integer number (605784576066).

Almost surely, 2^{2221210112231} is an apocalyptic number.

2221210112231 is a deficient number, since it is larger than the sum of its proper divisors (201928192033).

2221210112231 is a wasteful number, since it uses less digits than its factorization.

2221210112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201928192032.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2221210112231 its reverse (1322110121222), we get a palindrome (3543320233453).

The spelling of 2221210112231 in words is "two trillion, two hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, two hundred thirty-one".