12021210010 has 8 divisors (see below), whose sum is σ = 21638178036. Its totient is φ = 4808484000.

The previous prime is 12021209971. The next prime is 12021210011. The reversal of 12021210010 is 1001212021.

It can be written as a sum of positive squares in 2 ways, for example, as 11101361769 + 919848241 = 105363^2 + 30329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1202121001 = 12021210010 / (1 + 2 + 0 + 2 + 1 + 2 + 1 + 0 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (12021210011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601060491 + ... + 601060510.

Almost surely, 2^12021210010 is an apocalyptic number.

12021210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021210010 is a deficient number, since it is larger than the sum of its proper divisors (9616968026).

12021210010 is a wasteful number, since it uses less digits than its factorization.

12021210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202121008.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12021210010 its reverse (1001212021), we get a palindrome (13022422031).

The spelling of 12021210010 in words is "twelve billion, twenty-one million, two hundred ten thousand, ten".