2220212201 has 4 divisors (see below), whose sum is σ = 2220306900. Its totient is φ = 2220117504.

The previous prime is 2220212161. The next prime is 2220212207. The reversal of 2220212201 is 1022120222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1022120222 = 2 ⋅511060111.

It can be written as a sum of positive squares in 2 ways, for example, as 1740558400 + 479653801 = 41720^2 + 21901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220212201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2220212207) 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, 16685 + ... + 68693.

It is an arithmetic number, because the mean of its divisors is an integer number (555076725).

Almost surely, 2^2220212201 is an apocalyptic number.

It is an amenable number.

2220212201 is a deficient number, since it is larger than the sum of its proper divisors (94699).

2220212201 is an equidigital number, since it uses as much as digits as its factorization.

2220212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94698.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2220212201 is about 47119.1277614516. The cubic root of 2220212201 is about 1304.5623133520.

Adding to 2220212201 its reverse (1022120222), we get a palindrome (3242332423).

The spelling of 2220212201 in words is "two billion, two hundred twenty million, two hundred twelve thousand, two hundred one".