12211202210 has 16 divisors (see below), whose sum is σ = 21994913016. Its totient is φ = 4881203328.

The previous prime is 12211202197. The next prime is 12211202261. The reversal of 12211202210 is 1220211221.

It can be written as a sum of positive squares in 4 ways, for example, as 10455676009 + 1755526201 = 102253^2 + 41899^2 .

It is a super-2 number, since 2×12211202210² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394019 + ... + 423878.

Almost surely, 2^12211202210 is an apocalyptic number.

12211202210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211202210 is a deficient number, since it is larger than the sum of its proper divisors (9783710806).

12211202210 is a wasteful number, since it uses less digits than its factorization.

12211202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819397.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12211202210 its reverse (1220211221), we get a palindrome (13431413431).

The spelling of 12211202210 in words is "twelve billion, two hundred eleven million, two hundred two thousand, two hundred ten".