12021013010 has 16 divisors (see below), whose sum is σ = 22383955800. Its totient is φ = 4642598016.

The previous prime is 12021013009. The next prime is 12021013019. The reversal of 12021013010 is 1031012021.

It can be written as a sum of positive squares in 4 ways, for example, as 6590354761 + 5430658249 = 81181^2 + 73693^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12021012982 and 12021013000.

It is not an unprimeable number, because it can be changed into a prime (12021013019) 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, 20725595 + ... + 20726174.

Almost surely, 2^12021013010 is an apocalyptic number.

12021013010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021013010 is a deficient number, since it is larger than the sum of its proper divisors (10362942790).

12021013010 is a wasteful number, since it uses less digits than its factorization.

12021013010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41451805.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12021013010 its reverse (1031012021), we get a palindrome (13052025031).

The spelling of 12021013010 in words is "twelve billion, twenty-one million, thirteen thousand, ten".