12211203233221 has 8 divisors (see below), whose sum is σ = 12527381169504. Its totient is φ = 11898767047920.

The previous prime is 12211203233191. The next prime is 12211203233237. The reversal of 12211203233221 is 12233230211221.

12211203233221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12211203233221 - 2¹³ = 12211203225029 is a prime.

It is a super-2 number, since 2×12211203233221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211203230221) 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, 935431135 + ... + 935444188.

It is an arithmetic number, because the mean of its divisors is an integer number (1565922646188).

Almost surely, 2^{12211203233221} is an apocalyptic number.

It is an amenable number.

12211203233221 is a deficient number, since it is larger than the sum of its proper divisors (316177936283).

12211203233221 is a wasteful number, since it uses less digits than its factorization.

12211203233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870875491.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12211203233221 its reverse (12233230211221), we get a palindrome (24444433444442).

The spelling of 12211203233221 in words is "twelve trillion, two hundred eleven billion, two hundred three million, two hundred thirty-three thousand, two hundred twenty-one".