12010021010 has 64 divisors (see below), whose sum is σ = 23786511840. Its totient is φ = 4338647040.

The previous prime is 12010020989. The next prime is 12010021027. The reversal of 12010021010 is 1012001021.

It can be written as a sum of positive squares in 16 ways, for example, as 753447601 + 11256573409 = 27449^2 + 106097^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2677970 + ... + 2682450.

Almost surely, 2^12010021010 is an apocalyptic number.

12010021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12010021010 is a deficient number, since it is larger than the sum of its proper divisors (11776490830).

12010021010 is a wasteful number, since it uses less digits than its factorization.

12010021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943.

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

Adding to 12010021010 its reverse (1012001021), we get a palindrome (13022022031).

The spelling of 12010021010 in words is "twelve billion, ten million, twenty-one thousand, ten".