220011110001 has 24 divisors (see below), whose sum is σ = 318142156800. Its totient is φ = 146513416896.

The previous prime is 220011109979. The next prime is 220011110021. The reversal of 220011110001 is 100011110022.

It is a happy number.

It is not a de Polignac number, because 220011110001 - 2²¹ = 220009012849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220011110021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45842800 + ... + 45847598.

It is an arithmetic number, because the mean of its divisors is an integer number (13255923200).

Almost surely, 2^220011110001 is an apocalyptic number.

It is an amenable number.

220011110001 is a deficient number, since it is larger than the sum of its proper divisors (98131046799).

220011110001 is a wasteful number, since it uses less digits than its factorization.

220011110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325 (or 9322 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 220011110001 its reverse (100011110022), we get a palindrome (320022220023).

The spelling of 220011110001 in words is "two hundred twenty billion, eleven million, one hundred ten thousand, one".