12220221222001 has 8 divisors (see below), whose sum is σ = 13175558668160. Its totient is φ = 11267072408592.

The previous prime is 12220221221993. The next prime is 12220221222037. The reversal of 12220221222001 is 10022212202221.

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

It is not a de Polignac number, because 12220221222001 - 2³ = 12220221221993 is a prime.

It is a super-2 number, since 2×12220221222001² (a number of 27 digits) contains 22 as substring.

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 12220221222001.

It is not an unprimeable number, because it can be changed into a prime (12220221222101) 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, 547146585 + ... + 547168918.

It is an arithmetic number, because the mean of its divisors is an integer number (1646944833520).

Almost surely, 2^{12220221222001} is an apocalyptic number.

It is an amenable number.

12220221222001 is a deficient number, since it is larger than the sum of its proper divisors (955337446159).

12220221222001 is a wasteful number, since it uses less digits than its factorization.

12220221222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094316375.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12220221222001 its reverse (10022212202221), we get a palindrome (22242433424222).

The spelling of 12220221222001 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, one".