12200121211110 has 128 divisors (see below), whose sum is σ = 35406922245120. Its totient is φ = 2628142350336.

The previous prime is 12200121211099. The next prime is 12200121211127. The reversal of 12200121211110 is 1111212100221.

It is a happy number.

It is a super-2 number, since 2×12200121211110² (a number of 27 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 12200121211110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7151367 + ... + 8691506.

It is an arithmetic number, because the mean of its divisors is an integer number (276616580040).

Almost surely, 2^{12200121211110} is an apocalyptic number.

12200121211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12200121211110 is an abundant number, since it is smaller than the sum of its proper divisors (23206801034010).

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

12200121211110 is a wasteful number, since it uses less digits than its factorization.

12200121211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843102.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12200121211110 its reverse (1111212100221), we get a palindrome (13311333311331).

The spelling of 12200121211110 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, two hundred eleven thousand, one hundred ten".