12021120010 has 16 divisors (see below), whose sum is σ = 21639376872. Its totient is φ = 4808145600.

The previous prime is 12021119969. The next prime is 12021120061. The reversal of 12021120010 is 1002112021.

It can be written as a sum of positive squares in 4 ways, for example, as 7881355729 + 4139764281 = 88777^2 + 64341^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200980 + ... + 253840.

Almost surely, 2^12021120010 is an apocalyptic number.

12021120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021120010 is a deficient number, since it is larger than the sum of its proper divisors (9618256862).

12021120010 is a wasteful number, since it uses less digits than its factorization.

12021120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75609.

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

Adding to 12021120010 its reverse (1002112021), we get a palindrome (13023232031).

The spelling of 12021120010 in words is "twelve billion, twenty-one million, one hundred twenty thousand, ten".