12021122022210 has 96 divisors (see below), whose sum is σ = 35959636627200. Its totient is φ = 2729244173184.

The previous prime is 12021122022197. The next prime is 12021122022211. The reversal of 12021122022210 is 1222022112021.

It is a happy number.

12021122022210 is a `hidden beast` number, since 1 + 2 + 0 + 211 + 220 + 22 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12021122022211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63936822 + ... + 64124561.

It is an arithmetic number, because the mean of its divisors is an integer number (374579548200).

Almost surely, 2^{12021122022210} is an apocalyptic number.

12021122022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021122022210 is an abundant number, since it is smaller than the sum of its proper divisors (23938514604990).

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

12021122022210 is a wasteful number, since it uses less digits than its factorization.

12021122022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128061552 (or 128061549 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12021122022210 its reverse (1222022112021), we get a palindrome (13243144134231).

The spelling of 12021122022210 in words is "twelve trillion, twenty-one billion, one hundred twenty-two million, twenty-two thousand, two hundred ten".