1222120112001 has 16 divisors (see below), whose sum is σ = 1735677465984. Its totient is φ = 762228717824.

The previous prime is 1222120111997. The next prime is 1222120112009. The reversal of 1222120112001 is 1002110212221.

It is a cyclic number.

It is not a de Polignac number, because 1222120112001 - 2² = 1222120111997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222120112009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71737410 + ... + 71754443.

It is an arithmetic number, because the mean of its divisors is an integer number (108479841624).

Almost surely, 2^{1222120112001} is an apocalyptic number.

It is an amenable number.

1222120112001 is a deficient number, since it is larger than the sum of its proper divisors (513557353983).

1222120112001 is a wasteful number, since it uses less digits than its factorization.

1222120112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143492040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222120112001 its reverse (1002110212221), we get a palindrome (2224230324222).

The spelling of 1222120112001 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred twelve thousand, one".