2131222303112 has 64 divisors (see below), whose sum is σ = 4748635376640. Its totient is φ = 877465036800.

The previous prime is 2131222303087. The next prime is 2131222303121. The reversal of 2131222303112 is 2113032221312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4242689 + ... + 4718352.

It is an arithmetic number, because the mean of its divisors is an integer number (74197427760).

Almost surely, 2^{2131222303112} is an apocalyptic number.

It is an amenable number.

2131222303112 is an abundant number, since it is smaller than the sum of its proper divisors (2617413073528).

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

2131222303112 is a wasteful number, since it uses less digits than its factorization.

2131222303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8961222 (or 8961218 counting only the distinct ones).

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

Adding to 2131222303112 its reverse (2113032221312), we get a palindrome (4244254524424).

The spelling of 2131222303112 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-two million, three hundred three thousand, one hundred twelve".