12221111212201 has 8 divisors (see below), whose sum is σ = 12339877921280. Its totient is φ = 12102346717632.

The previous prime is 12221111212157. The next prime is 12221111212283. The reversal of 12221111212201 is 10221211112221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221111212201 - 2¹⁹ = 12221110687913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221111242201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11889505 + ... + 12876433.

It is an arithmetic number, because the mean of its divisors is an integer number (1542484740160).

Almost surely, 2^{12221111212201} is an apocalyptic number.

It is an amenable number.

12221111212201 is a deficient number, since it is larger than the sum of its proper divisors (118766709079).

12221111212201 is a wasteful number, since it uses less digits than its factorization.

12221111212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107255.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12221111212201 its reverse (10221211112221), we get a palindrome (22442322324422).

The spelling of 12221111212201 in words is "twelve trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twelve thousand, two hundred one".