12221221201120 has 96 divisors (see below), whose sum is σ = 30393532713600. Its totient is φ = 4631003767296.

The previous prime is 12221221201103. The next prime is 12221221201127. The reversal of 12221221201120 is 2110212212221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221221201127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86225671 + ... + 86367289.

It is an arithmetic number, because the mean of its divisors is an integer number (316599299100).

Almost surely, 2^{12221221201120} is an apocalyptic number.

12221221201120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221221201120 is an abundant number, since it is smaller than the sum of its proper divisors (18172311512480).

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

12221221201120 is a wasteful number, since it uses less digits than its factorization.

12221221201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170040 (or 170032 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221221201120 its reverse (2110212212221), we get a palindrome (14331433413341).

It can be divided in two parts, 1222122 and 1201120, that added together give a palindrome (2423242).

The spelling of 12221221201120 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred one thousand, one hundred twenty".