12121202012 has 6 divisors (see below), whose sum is σ = 21212103528. Its totient is φ = 6060601004.

The previous prime is 12121201997. The next prime is 12121202039. The reversal of 12121202012 is 21020212121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515150248 + ... + 1515150255.

It is an arithmetic number, because the mean of its divisors is an integer number (3535350588).

Almost surely, 2^12121202012 is an apocalyptic number.

It is an amenable number.

12121202012 is a deficient number, since it is larger than the sum of its proper divisors (9090901516).

12121202012 is a wasteful number, since it uses less digits than its factorization.

12121202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030300507 (or 3030300505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12121202012 its reverse (21020212121), we get a palindrome (33141414133).

The spelling of 12121202012 in words is "twelve billion, one hundred twenty-one million, two hundred two thousand, twelve".