12221122122001 has 8 divisors (see below), whose sum is σ = 13585763550464. Its totient is φ = 10917131423760.

The previous prime is 12221122121987. The next prime is 12221122122017. The reversal of 12221122122001 is 10022122112221.

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 12221122122001 - 2⁹ = 12221122121489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221122122001.

It is not an unprimeable number, because it can be changed into a prime (12221122122101) 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, 15162682131 + ... + 15162682936.

It is an arithmetic number, because the mean of its divisors is an integer number (1698220443808).

Almost surely, 2^{12221122122001} is an apocalyptic number.

It is an amenable number.

12221122122001 is a deficient number, since it is larger than the sum of its proper divisors (1364641428463).

12221122122001 is a wasteful number, since it uses less digits than its factorization.

12221122122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30325365111.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221122122001 its reverse (10022122112221), we get a palindrome (22243244234222).

The spelling of 12221122122001 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-two thousand, one".