12021021032 has 16 divisors (see below), whose sum is σ = 23266492800. Its totient is φ = 5816622960.

The previous prime is 12021021031. The next prime is 12021021049. The reversal of 12021021032 is 23012012021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021020998 and 12021021016.

It is not an unprimeable number, because it can be changed into a prime (12021021031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24235682 + ... + 24236177.

It is an arithmetic number, because the mean of its divisors is an integer number (1454155800).

Almost surely, 2^12021021032 is an apocalyptic number.

It is an amenable number.

12021021032 is a deficient number, since it is larger than the sum of its proper divisors (11245471768).

12021021032 is a wasteful number, since it uses less digits than its factorization.

12021021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48471896 (or 48471892 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12021021032 its reverse (23012012021), we get a palindrome (35033033053).

The spelling of 12021021032 in words is "twelve billion, twenty-one million, twenty-one thousand, thirty-two".