22111012220201 has 4 divisors (see below), whose sum is σ = 22143385591632. Its totient is φ = 22078638848772.

The previous prime is 22111012220183. The next prime is 22111012220249. The reversal of 22111012220201 is 10202221011122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22111012220201 - 2⁶ = 22111012220137 is a prime.

It is a super-2 number, since 2×22111012220201² (a number of 27 digits) contains 22 as substring.

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 22111012220201.

It is not an unprimeable number, because it can be changed into a prime (22111012220701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16186684691 + ... + 16186686056.

It is an arithmetic number, because the mean of its divisors is an integer number (5535846397908).

Almost surely, 2^{22111012220201} is an apocalyptic number.

It is an amenable number.

22111012220201 is a deficient number, since it is larger than the sum of its proper divisors (32373371431).

22111012220201 is an equidigital number, since it uses as much as digits as its factorization.

22111012220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32373371430.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111012220201 its reverse (10202221011122), we get a palindrome (32313233231323).

The spelling of 22111012220201 in words is "twenty-two trillion, one hundred eleven billion, twelve million, two hundred twenty thousand, two hundred one".