12032223021 has 48 divisors (see below), whose sum is σ = 21602555520. Its totient is φ = 6283785600.

The previous prime is 12032222953. The next prime is 12032223041.

12032223021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12032223021 - 2¹³ = 12032214829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12032222985 and 12032223003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032223041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9990 + ... + 155448.

It is an arithmetic number, because the mean of its divisors is an integer number (450053240).

Almost surely, 2^12032223021 is an apocalyptic number.

It is an amenable number.

12032223021 is a deficient number, since it is larger than the sum of its proper divisors (9570332499).

12032223021 is a wasteful number, since it uses less digits than its factorization.

12032223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145586 (or 145583 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The spelling of 12032223021 in words is "twelve billion, thirty-two million, two hundred twenty-three thousand, twenty-one".