111201220001220 has 24 divisors (see below), whose sum is σ = 311363416003584. Its totient is φ = 29653658666976.

The previous prime is 111201220001219. The next prime is 111201220001269. The reversal of 111201220001220 is 22100022102111.

111201220001220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111201220001220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111201220001220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926676833284 + ... + 926676833403.

It is an arithmetic number, because the mean of its divisors is an integer number (12973475666816).

Almost surely, 2^{111201220001220} is an apocalyptic number.

111201220001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201220001220 is an abundant number, since it is smaller than the sum of its proper divisors (200162196002364).

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

111201220001220 is a wasteful number, since it uses less digits than its factorization.

111201220001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853353666699 (or 1853353666697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111201220001220 its reverse (22100022102111), we get a palindrome (133301242103331).

The spelling of 111201220001220 in words is "one hundred eleven trillion, two hundred one billion, two hundred twenty million, one thousand, two hundred twenty".