22011220000121 has 8 divisors (see below), whose sum is σ = 24012305428800. Its totient is φ = 20010145476240.

The previous prime is 22011220000103. The next prime is 22011220000151. The reversal of 22011220000121 is 12100002211022.

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 22011220000121 - 2²⁶ = 22011152891257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011220000096 and 22011220000105.

It is not an unprimeable number, because it can be changed into a prime (22011220000151) 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, 1824575 + ... + 6881243.

It is an arithmetic number, because the mean of its divisors is an integer number (3001538178600).

Almost surely, 2^{22011220000121} is an apocalyptic number.

It is an amenable number.

22011220000121 is a deficient number, since it is larger than the sum of its proper divisors (2001085428679).

22011220000121 is a wasteful number, since it uses less digits than its factorization.

22011220000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452399.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22011220000121 its reverse (12100002211022), we get a palindrome (34111222211143).

The spelling of 22011220000121 in words is "twenty-two trillion, eleven billion, two hundred twenty million, one hundred twenty-one", and thus it is an aban number.