12121002032 has 20 divisors (see below), whose sum is σ = 23547414000. Its totient is φ = 6044250048.

The previous prime is 12121002031. The next prime is 12121002059. The reversal of 12121002032 is 23020012121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12121001998 and 12121002016.

It is not an unprimeable number, because it can be changed into a prime (12121002031) 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, 1009532 + ... + 1021467.

It is an arithmetic number, because the mean of its divisors is an integer number (1177370700).

Almost surely, 2^12121002032 is an apocalyptic number.

It is an amenable number.

12121002032 is a deficient number, since it is larger than the sum of its proper divisors (11426411968).

12121002032 is a wasteful number, since it uses less digits than its factorization.

12121002032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031380 (or 2031374 counting only the distinct ones).

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

Adding to 12121002032 its reverse (23020012121), we get a palindrome (35141014153).

The spelling of 12121002032 in words is "twelve billion, one hundred twenty-one million, two thousand, thirty-two".