22111121210201 has 16 divisors (see below), whose sum is σ = 22252064169600. Its totient is φ = 21970736880768.

The previous prime is 22111121210177. The next prime is 22111121210207. The reversal of 22111121210201 is 10201212111122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111121210201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111121210201.

It is not an unprimeable number, because it can be changed into a prime (22111121210207) 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, 125266115 + ... + 125442503.

It is an arithmetic number, because the mean of its divisors is an integer number (1390754010600).

Almost surely, 2^{22111121210201} is an apocalyptic number.

It is an amenable number.

22111121210201 is a deficient number, since it is larger than the sum of its proper divisors (140942959399).

22111121210201 is a wasteful number, since it uses less digits than its factorization.

22111121210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177968.

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

Adding to 22111121210201 its reverse (10201212111122), we get a palindrome (32312333321323).

The spelling of 22111121210201 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, two hundred one".