220111201201 has 4 divisors (see below), whose sum is σ = 220328488692. Its totient is φ = 219893913712.

The previous prime is 220111201183. The next prime is 220111201259. The reversal of 220111201201 is 102102111022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3760632976 + 216350568225 = 61324^2 + 465135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220111201201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220111201301) 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, 108642226 + ... + 108644251.

It is an arithmetic number, because the mean of its divisors is an integer number (55082122173).

Almost surely, 2^220111201201 is an apocalyptic number.

It is an amenable number.

220111201201 is a deficient number, since it is larger than the sum of its proper divisors (217287491).

220111201201 is a wasteful number, since it uses less digits than its factorization.

220111201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217287490.

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

Adding to 220111201201 its reverse (102102111022), we get a palindrome (322213312223).

The spelling of 220111201201 in words is "two hundred twenty billion, one hundred eleven million, two hundred one thousand, two hundred one".