220101201 has 6 divisors (see below), whose sum is σ = 317923970. Its totient is φ = 146734128.

The previous prime is 220101181. The next prime is 220101221. The reversal of 220101201 is 102101022.

It is an interprime number because it is at equal distance from previous prime (220101181) and next prime (220101221).

It can be written as a sum of positive squares in only one way, i.e., 191102976 + 28998225 = 13824^2 + 5385^2 .

It is not a de Polignac number, because 220101201 - 2⁵ = 220101169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 24455689 = 220101201 / (2 + 2 + 0 + 1 + 0 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220101221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12227836 + ... + 12227853.

Almost surely, 2^220101201 is an apocalyptic number.

It is an amenable number.

220101201 is a deficient number, since it is larger than the sum of its proper divisors (97822769).

220101201 is a wasteful number, since it uses less digits than its factorization.

220101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24455695 (or 24455692 counting only the distinct ones).

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

The square root of 220101201 is about 14835.8080669709. The cubic root of 220101201 is about 603.7736248359.

Adding to 220101201 its reverse (102101022), we get a palindrome (322202223).

The spelling of 220101201 in words is "two hundred twenty million, one hundred one thousand, two hundred one".