12221000001100 has 36 divisors (see below), whose sum is σ = 28930440005208. Its totient is φ = 4444000000000.

The previous prime is 12221000001079. The next prime is 12221000001113. The reversal of 12221000001100 is 110000012221.

12221000001100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5554998901 + ... + 5555001100.

It is an arithmetic number, because the mean of its divisors is an integer number (803623333478).

Almost surely, 2^{12221000001100} is an apocalyptic number.

12221000001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221000001100 is an abundant number, since it is smaller than the sum of its proper divisors (16709440004108).

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

12221000001100 is a wasteful number, since it uses less digits than its factorization.

12221000001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110000026 (or 11110000019 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12221000001100 its reverse (110000012221), we get a palindrome (12331000013321).

The spelling of 12221000001100 in words is "twelve trillion, two hundred twenty-one billion, one thousand, one hundred".