2127221222260 has 96 divisors (see below), whose sum is σ = 4687916083200. Its totient is φ = 809760806400.

The previous prime is 2127221222251. The next prime is 2127221222303. The reversal of 2127221222260 is 622221227212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12981921 + ... + 13144759.

It is an arithmetic number, because the mean of its divisors is an integer number (48832459200).

Almost surely, 2^{2127221222260} is an apocalyptic number.

2127221222260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2127221222260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2343958041600).

2127221222260 is an abundant number, since it is smaller than the sum of its proper divisors (2560694860940).

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

2127221222260 is a wasteful number, since it uses less digits than its factorization.

2127221222260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163201 (or 163199 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 2127221222260 its reverse (622221227212), we get a palindrome (2749442449472).

The spelling of 2127221222260 in words is "two trillion, one hundred twenty-seven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred sixty".