2131222321120 has 24 divisors (see below), whose sum is σ = 5035012734024. Its totient is φ = 852488928384.

The previous prime is 2131222321069. The next prime is 2131222321133. The reversal of 2131222321120 is 211232221312.

It is a junction number, because it is equal to n+sod(n) for n = 2131222321091 and 2131222321100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6660069594 + ... + 6660069913.

It is an arithmetic number, because the mean of its divisors is an integer number (209792197251).

Almost surely, 2^{2131222321120} is an apocalyptic number.

2131222321120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131222321120 is an abundant number, since it is smaller than the sum of its proper divisors (2903790412904).

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

2131222321120 is a wasteful number, since it uses less digits than its factorization.

2131222321120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320139522 (or 13320139514 counting only the distinct ones).

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

Adding to 2131222321120 its reverse (211232221312), we get a palindrome (2342454542432).

The spelling of 2131222321120 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred twenty".