220012101 has 24 divisors (see below), whose sum is σ = 327225600. Its totient is φ = 142343136.

The previous prime is 220012097. The next prime is 220012103. The reversal of 220012101 is 101210022.

220012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220012101 - 2² = 220012097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198916 + ... + 200018.

It is an arithmetic number, because the mean of its divisors is an integer number (13634400).

Almost surely, 2^220012101 is an apocalyptic number.

It is an amenable number.

220012101 is a deficient number, since it is larger than the sum of its proper divisors (107213499).

220012101 is a wasteful number, since it uses less digits than its factorization.

220012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 220012101 is about 14832.8048932088. The cubic root of 220012101 is about 603.6921418779.

Adding to 220012101 its reverse (101210022), we get a palindrome (321222123).

The spelling of 220012101 in words is "two hundred twenty million, twelve thousand, one hundred one".