12120202210 has 8 divisors (see below), whose sum is σ = 21816363996. Its totient is φ = 4848080880.

The previous prime is 12120202189. The next prime is 12120202217. The reversal of 12120202210 is 1220202121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10923803289 + 1196398921 = 104517^2 + 34589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12120202210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12120202217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606010101 + ... + 606010120.

Almost surely, 2^12120202210 is an apocalyptic number.

12120202210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120202210 is a deficient number, since it is larger than the sum of its proper divisors (9696161786).

12120202210 is a wasteful number, since it uses less digits than its factorization.

12120202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212020228.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12120202210 its reverse (1220202121), we get a palindrome (13340404331).

The spelling of 12120202210 in words is "twelve billion, one hundred twenty million, two hundred two thousand, two hundred ten".