220201011011 has 4 divisors (see below), whose sum is σ = 221019602400. Its totient is φ = 219382419624.

The previous prime is 220201011001. The next prime is 220201011013. The reversal of 220201011011 is 110110102022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220201011011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201010983 and 220201011001.

It is not an unprimeable number, because it can be changed into a prime (220201011013) 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, 409295291 + ... + 409295828.

It is an arithmetic number, because the mean of its divisors is an integer number (55254900600).

Almost surely, 2^220201011011 is an apocalyptic number.

220201011011 is a deficient number, since it is larger than the sum of its proper divisors (818591389).

220201011011 is an equidigital number, since it uses as much as digits as its factorization.

220201011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818591388.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 220201011011 its reverse (110110102022), we get a palindrome (330311113033).

The spelling of 220201011011 in words is "two hundred twenty billion, two hundred one million, eleven thousand, eleven".