220111121001 has 8 divisors (see below), whose sum is σ = 293671702720. Its totient is φ = 146645643312.

The previous prime is 220111120973. The next prime is 220111121039. The reversal of 220111121001 is 100121111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220111121001 - 2⁵ = 220111120969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220111121081) 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, 23770606 + ... + 23779863.

It is an arithmetic number, because the mean of its divisors is an integer number (36708962840).

Almost surely, 2^220111121001 is an apocalyptic number.

It is an amenable number.

220111121001 is a deficient number, since it is larger than the sum of its proper divisors (73560581719).

220111121001 is a wasteful number, since it uses less digits than its factorization.

220111121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47552015.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 220111121001 its reverse (100121111022), we get a palindrome (320232232023).

The spelling of 220111121001 in words is "two hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, one".