12021002210 has 64 divisors (see below), whose sum is σ = 26227321344. Its totient is φ = 3877632000.

The previous prime is 12021002207. The next prime is 12021002219. The reversal of 12021002210 is 1220012021.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12021002191 and 12021002200.

It is not an unprimeable number, because it can be changed into a prime (12021002219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37010 + ... + 159410.

It is an arithmetic number, because the mean of its divisors is an integer number (409801896).

Almost surely, 2^12021002210 is an apocalyptic number.

12021002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021002210 is an abundant number, since it is smaller than the sum of its proper divisors (14206319134).

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

12021002210 is a wasteful number, since it uses less digits than its factorization.

12021002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122499.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12021002210 its reverse (1220012021), we get a palindrome (13241014231).

The spelling of 12021002210 in words is "twelve billion, twenty-one million, two thousand, two hundred ten".