12021031010 has 32 divisors (see below), whose sum is σ = 22267187712. Its totient is φ = 4669081920.

The previous prime is 12021030997. The next prime is 12021031013. The reversal of 12021031010 is 1013012021.

It is a junction number, because it is equal to n+sod(n) for n = 12021030982 and 12021031000.

It is not an unprimeable number, because it can be changed into a prime (12021031013) 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, 153815 + ... + 218405.

It is an arithmetic number, because the mean of its divisors is an integer number (695849616).

Almost surely, 2^12021031010 is an apocalyptic number.

12021031010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021031010 is a deficient number, since it is larger than the sum of its proper divisors (10246156702).

12021031010 is a wasteful number, since it uses less digits than its factorization.

12021031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65138.

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

Adding to 12021031010 its reverse (1013012021), we get a palindrome (13034043031).

The spelling of 12021031010 in words is "twelve billion, twenty-one million, thirty-one thousand, ten".