12221000101120 has 36 divisors (see below), whose sum is σ = 29273114307780. Its totient is φ = 4888400039936.

The previous prime is 12221000101117. The next prime is 12221000101129. The reversal of 12221000101120 is 2110100012221.

It can be written as a sum of positive squares in 2 ways, for example, as 3011863062784 + 9209137038336 = 1735472^2 + 3034656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12221000101120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221000101129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773826885 + ... + 4773829444.

It is an arithmetic number, because the mean of its divisors is an integer number (813142064105).

Almost surely, 2^{12221000101120} is an apocalyptic number.

12221000101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221000101120 is an abundant number, since it is smaller than the sum of its proper divisors (17052114206660).

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

12221000101120 is an frugal number, since it uses more digits than its factorization.

12221000101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547656350 (or 9547656336 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12221000101120 its reverse (2110100012221), we get a palindrome (14331100113341).

The spelling of 12221000101120 in words is "twelve trillion, two hundred twenty-one billion, one hundred one thousand, one hundred twenty".