2221032112312 has 48 divisors (see below), whose sum is σ = 4509888395040. Its totient is φ = 1024984816128.

The previous prime is 2221032112309. The next prime is 2221032112339. The reversal of 2221032112312 is 2132112301222.

It is a super-2 number, since 2×2221032112312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13700353 + ... + 13861519.

It is an arithmetic number, because the mean of its divisors is an integer number (93956008230).

Almost surely, 2^{2221032112312} is an apocalyptic number.

It is an amenable number.

2221032112312 is an abundant number, since it is smaller than the sum of its proper divisors (2288856282728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221032112312 is a wasteful number, since it uses less digits than its factorization.

2221032112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171392 (or 171375 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2221032112312 its reverse (2132112301222), we get a palindrome (4353144413534).

The spelling of 2221032112312 in words is "two trillion, two hundred twenty-one billion, thirty-two million, one hundred twelve thousand, three hundred twelve".