12021010010 has 32 divisors (see below), whose sum is σ = 21964893120. Its totient is φ = 4735905408.

The previous prime is 12021010009. The next prime is 12021010013. The reversal of 12021010010 is 1001012021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021010010.

It is not an unprimeable number, because it can be changed into a prime (12021010013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528329 + ... + 550611.

It is an arithmetic number, because the mean of its divisors is an integer number (686402910).

Almost surely, 2^12021010010 is an apocalyptic number.

12021010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021010010 is a deficient number, since it is larger than the sum of its proper divisors (9943883110).

12021010010 is a wasteful number, since it uses less digits than its factorization.

12021010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23102.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12021010010 its reverse (1001012021), we get a palindrome (13022022031).

The spelling of 12021010010 in words is "twelve billion, twenty-one million, ten thousand, ten".