12021022220210 has 32 divisors (see below), whose sum is σ = 22919181465600. Its totient is φ = 4523876891392.

The previous prime is 12021022220191. The next prime is 12021022220213. The reversal of 12021022220210 is 1202222012021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (12021022220213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12701360 + ... + 13614939.

It is an arithmetic number, because the mean of its divisors is an integer number (716224420800).

Almost surely, 2^{12021022220210} is an apocalyptic number.

12021022220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021022220210 is a deficient number, since it is larger than the sum of its proper divisors (10898159245390).

12021022220210 is a wasteful number, since it uses less digits than its factorization.

12021022220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26319010.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12021022220210 its reverse (1202222012021), we get a palindrome (13223244232231).

The spelling of 12021022220210 in words is "twelve trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred ten".