10220212209 has 4 divisors (see below), whose sum is σ = 13626949616. Its totient is φ = 6813474804.

The previous prime is 10220212199. The next prime is 10220212213. The reversal of 10220212209 is 90221202201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10220212209 - 2¹⁵ = 10220179441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220212259) 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, 1703368699 + ... + 1703368704.

It is an arithmetic number, because the mean of its divisors is an integer number (3406737404).

Almost surely, 2^10220212209 is an apocalyptic number.

It is an amenable number.

10220212209 is a deficient number, since it is larger than the sum of its proper divisors (3406737407).

10220212209 is an equidigital number, since it uses as much as digits as its factorization.

10220212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406737406.

The product of its (nonzero) digits is 288, while the sum is 21.

It can be divided in two parts, 102202 and 12209, that added together give a palindrome (114411).

The spelling of 10220212209 in words is "ten billion, two hundred twenty million, two hundred twelve thousand, two hundred nine".