20111120222201 has 8 divisors (see below), whose sum is σ = 20187957297024. Its totient is φ = 20034285942880.

The previous prime is 20111120222191. The next prime is 20111120222203. The reversal of 20111120222201 is 10222202111102.

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 20111120222201 - 2³⁴ = 20093940353017 is a prime.

It is a super-2 number, since 2×20111120222201² (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 20111120222201.

It is not an unprimeable number, because it can be changed into a prime (20111120222203) 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, 14333141 + ... + 15673581.

It is an arithmetic number, because the mean of its divisors is an integer number (2523494662128).

Almost surely, 2^{20111120222201} is an apocalyptic number.

It is an amenable number.

20111120222201 is a deficient number, since it is larger than the sum of its proper divisors (76837074823).

20111120222201 is a wasteful number, since it uses less digits than its factorization.

20111120222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397751.

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

Adding to 20111120222201 its reverse (10222202111102), we get a palindrome (30333322333303).

The spelling of 20111120222201 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty-two thousand, two hundred one".