12221001211014 has 128 divisors (see below), whose sum is σ = 28351911168000. Its totient is φ = 3899100063744.

The previous prime is 12221001210959. The next prime is 12221001211031. The reversal of 12221001211014 is 41011210012221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

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, 28688772 + ... + 29111640.

It is an arithmetic number, because the mean of its divisors is an integer number (221499306000).

Almost surely, 2^{12221001211014} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221001211014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14175955584000).

12221001211014 is an abundant number, since it is smaller than the sum of its proper divisors (16130909956986).

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

12221001211014 is a wasteful number, since it uses less digits than its factorization.

12221001211014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423179 (or 423173 counting only the distinct ones).

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

Adding to 12221001211014 its reverse (41011210012221), we get a palindrome (53232211223235).

The spelling of 12221001211014 in words is "twelve trillion, two hundred twenty-one billion, one million, two hundred eleven thousand, fourteen".