12001012010 has 48 divisors (see below), whose sum is σ = 23845175928. Its totient is φ = 4322987520.

The previous prime is 12001011991. The next prime is 12001012031. The reversal of 12001012010 is 1021010021.

It can be written as a sum of positive squares in 12 ways, for example, as 2904239881 + 9096772129 = 53891^2 + 95377^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191072 + ... + 245988.

Almost surely, 2^12001012010 is an apocalyptic number.

12001012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001012010 is a deficient number, since it is larger than the sum of its proper divisors (11844163918).

12001012010 is a wasteful number, since it uses less digits than its factorization.

12001012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55019 (or 54978 counting only the distinct ones).

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

Adding to 12001012010 its reverse (1021010021), we get a palindrome (13022022031).

The spelling of 12001012010 in words is "twelve billion, one million, twelve thousand, ten".