12211020220210 has 24 divisors (see below), whose sum is σ = 25568381115180. Its totient is φ = 4186635503904.

The previous prime is 12211020220177. The next prime is 12211020220327. The reversal of 12211020220210 is 1202202011221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11076256266201 + 1134763954009 = 3328101^2 + 1065253^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12460224225 + ... + 12460225204.

Almost surely, 2^{12211020220210} is an apocalyptic number.

12211020220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211020220210 is an abundant number, since it is smaller than the sum of its proper divisors (13357360894970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211020220210 is a wasteful number, since it uses less digits than its factorization.

12211020220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920449450 (or 24920449443 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12211020220210 its reverse (1202202011221), we get a palindrome (13413222231431).

The spelling of 12211020220210 in words is "twelve trillion, two hundred eleven billion, twenty million, two hundred twenty thousand, two hundred ten".