220111221001 has 8 divisors (see below), whose sum is σ = 262492884864. Its totient is φ = 180463858080.

The previous prime is 220111220993. The next prime is 220111221013. The reversal of 220111221001 is 100122111022.

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 220111221001 - 2³ = 220111220993 is a prime.

It is a super-2 number, since 2×220111221001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220111225001) 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, 683575060 + ... + 683575381.

It is an arithmetic number, because the mean of its divisors is an integer number (32811610608).

Almost surely, 2^220111221001 is an apocalyptic number.

It is an amenable number.

220111221001 is a deficient number, since it is larger than the sum of its proper divisors (42381663863).

220111221001 is a wasteful number, since it uses less digits than its factorization.

220111221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367150471.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220111221001 its reverse (100122111022), we get a palindrome (320233332023).

The spelling of 220111221001 in words is "two hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, one".