12021026552260 has 96 divisors (see below), whose sum is σ = 27802297958400. Its totient is φ = 4329616636800.

The previous prime is 12021026552221. The next prime is 12021026552281. The reversal of 12021026552260 is 6225562012021.

It is a super-2 number, since 2×12021026552260² (a number of 27 digits) contains 22 as substring.

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, 16376925 + ... + 17095195.

It is an arithmetic number, because the mean of its divisors is an integer number (289607270400).

Almost surely, 2^{12021026552260} is an apocalyptic number.

12021026552260 is a gapful number since it is divisible by the number (10) 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 12021026552260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13901148979200).

12021026552260 is an abundant number, since it is smaller than the sum of its proper divisors (15781271406140).

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

12021026552260 is a wasteful number, since it uses less digits than its factorization.

12021026552260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719017 (or 719015 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 12021026552260 its reverse (6225562012021), we get a palindrome (18246588564281).

The spelling of 12021026552260 in words is "twelve trillion, twenty-one billion, twenty-six million, five hundred fifty-two thousand, two hundred sixty".