12221012111000 has 128 divisors (see below), whose sum is σ = 35653612700160. Its totient is φ = 3809146608000.

The previous prime is 12221012110963. The next prime is 12221012111089. The reversal of 12221012111000 is 11121012221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79280222 + ... + 79434221.

It is an arithmetic number, because the mean of its divisors is an integer number (278543849220).

Almost surely, 2^{12221012111000} is an apocalyptic number.

12221012111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221012111000 is an abundant number, since it is smaller than the sum of its proper divisors (23432600589160).

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

12221012111000 is a wasteful number, since it uses less digits than its factorization.

12221012111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158714482 (or 158714468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221012111000 its reverse (11121012221), we get a palindrome (12232133123221).

The spelling of 12221012111000 in words is "twelve trillion, two hundred twenty-one billion, twelve million, one hundred eleven thousand".