12221020133 has 8 divisors (see below), whose sum is σ = 13967549568. Its totient is φ = 10474658064.

The previous prime is 12221020127. The next prime is 12221020139. The reversal of 12221020133 is 33102012221.

It is an interprime number because it is at equal distance from previous prime (12221020127) and next prime (12221020139).

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 12221020133 - 2²⁰ = 12219971557 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221020139) 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, 255935 + ... + 299907.

It is an arithmetic number, because the mean of its divisors is an integer number (1745943696).

Almost surely, 2^12221020133 is an apocalyptic number.

It is an amenable number.

12221020133 is a deficient number, since it is larger than the sum of its proper divisors (1746529435).

12221020133 is an equidigital number, since it uses as much as digits as its factorization.

12221020133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83683.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12221020133 its reverse (33102012221), we get a palindrome (45323032354).

The spelling of 12221020133 in words is "twelve billion, two hundred twenty-one million, twenty thousand, one hundred thirty-three".