220101011 has 8 divisors (see below), whose sum is σ = 237147120. Its totient is φ = 203071392.

The previous prime is 220100987. The next prime is 220101017. The reversal of 220101011 is 110101022.

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 220101011 - 2²² = 215906707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220101011.

It is not an unprimeable number, because it can be changed into a prime (220101017) 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, 50060 + ... + 54278.

It is an arithmetic number, because the mean of its divisors is an integer number (29643390).

Almost surely, 2^220101011 is an apocalyptic number.

220101011 is a deficient number, since it is larger than the sum of its proper divisors (17046109).

220101011 is a wasteful number, since it uses less digits than its factorization.

220101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8245.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 220101011 is about 14835.8016635435. The cubic root of 220101011 is about 603.7734511021.

Adding to 220101011 its reverse (110101022), we get a palindrome (330202033).

The spelling of 220101011 in words is "two hundred twenty million, one hundred one thousand, eleven".