12001222010 has 16 divisors (see below), whose sum is σ = 21628526472. Its totient is φ = 4794638400.

The previous prime is 12001222001. The next prime is 12001222019. The reversal of 12001222010 is 1022210021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12001222001) and next prime (12001222019).

It can be written as a sum of positive squares in 4 ways, for example, as 11541419761 + 459802249 = 107431^2 + 21443^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12001221982 and 12001222000.

It is not an unprimeable number, because it can be changed into a prime (12001222019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722681 + ... + 739100.

Almost surely, 2^12001222010 is an apocalyptic number.

12001222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001222010 is a deficient number, since it is larger than the sum of its proper divisors (9627304462).

12001222010 is a wasteful number, since it uses less digits than its factorization.

12001222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462609.

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

Adding to 12001222010 its reverse (1022210021), we get a palindrome (13023432031).

The spelling of 12001222010 in words is "twelve billion, one million, two hundred twenty-two thousand, ten".