220201011 has 42 divisors (see below), whose sum is σ = 345733388. Its totient is φ = 140172120.

The previous prime is 220200997. The next prime is 220201019. The reversal of 220201011 is 110102022.

It is not a de Polignac number, because 220201011 - 2⁶ = 220200947 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220200984 and 220201002.

It is not an unprimeable number, because it can be changed into a prime (220201019) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 385356 + ... + 385926.

Almost surely, 2^220201011 is an apocalyptic number.

220201011 is a deficient number, since it is larger than the sum of its proper divisors (125532377).

220201011 is an frugal number, since it uses more digits than its factorization.

220201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 597 counting only the distinct ones).

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

The square root of 220201011 is about 14839.1715065229. The cubic root of 220201011 is about 603.8648761002.

Adding to 220201011 its reverse (110102022), we get a palindrome (330303033).

The spelling of 220201011 in words is "two hundred twenty million, two hundred one thousand, eleven".