22011121201121 has 8 divisors (see below), whose sum is σ = 24521673487080. Its totient is φ = 19617338788992.

The previous prime is 22011121201117. The next prime is 22011121201159. The reversal of 22011121201121 is 12110212111022.

It can be written as a sum of positive squares in 4 ways, for example, as 9017591521 + 22002103609600 = 94961^2 + 4690640^2 .

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 22011121201121 - 2² = 22011121201117 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 22011121201121.

It is not an unprimeable number, because it can be changed into a prime (22011121201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29192468060 + ... + 29192468813.

It is an arithmetic number, because the mean of its divisors is an integer number (3065209185885).

Almost surely, 2^{22011121201121} is an apocalyptic number.

It is an amenable number.

22011121201121 is a deficient number, since it is larger than the sum of its proper divisors (2510552285959).

22011121201121 is a wasteful number, since it uses less digits than its factorization.

22011121201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58384936915.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22011121201121 its reverse (12110212111022), we get a palindrome (34121333312143).

Subtracting from 22011121201121 its reverse (12110212111022), we obtain a palindrome (9900909090099).

The spelling of 22011121201121 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-one".