2221510314340 has 12 divisors (see below), whose sum is σ = 4665171660156. Its totient is φ = 888604125728.

The previous prime is 2221510314337. The next prime is 2221510314391. The reversal of 2221510314340 is 434130151222.

It can be written as a sum of positive squares in 2 ways, for example, as 571318292736 + 1650192021604 = 755856^2 + 1284598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2221510314299 and 2221510314308.

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 3 ways as a sum of consecutive naturals, for example, 55537757839 + ... + 55537757878.

It is an arithmetic number, because the mean of its divisors is an integer number (388764305013).

Almost surely, 2^{2221510314340} is an apocalyptic number.

2221510314340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221510314340 is an abundant number, since it is smaller than the sum of its proper divisors (2443661345816).

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

2221510314340 is a wasteful number, since it uses less digits than its factorization.

2221510314340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111075515726 (or 111075515724 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 2221510314340 its reverse (434130151222), we get a palindrome (2655640465562).

The spelling of 2221510314340 in words is "two trillion, two hundred twenty-one billion, five hundred ten million, three hundred fourteen thousand, three hundred forty".