12200221221111 has 48 divisors (see below), whose sum is σ = 21972467432448. Its totient is φ = 6337342756800.

The previous prime is 12200221221107. The next prime is 12200221221119. The reversal of 12200221221111 is 11112212200221.

12200221221111 is a `hidden beast` number, since 1 + 220 + 0 + 221 + 2 + 211 + 11 = 666.

12200221221111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12200221221111 - 2² = 12200221221107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200221221119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9637441 + ... + 10829621.

It is an arithmetic number, because the mean of its divisors is an integer number (457759738176).

Almost surely, 2^{12200221221111} is an apocalyptic number.

12200221221111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12200221221111 is a deficient number, since it is larger than the sum of its proper divisors (9772246211337).

12200221221111 is a wasteful number, since it uses less digits than its factorization.

12200221221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206972 (or 1206969 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12200221221111 its reverse (11112212200221), we get a palindrome (23312433421332).

The spelling of 12200221221111 in words is "twelve trillion, two hundred billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred eleven".