12122002018 has 32 divisors (see below), whose sum is σ = 21752665344. Its totient is φ = 4953550272.

The previous prime is 12122001979. The next prime is 12122002019. The reversal of 12122002018 is 81020022121.

It is a junction number, because it is equal to n+sod(n) for n = 12122001986 and 12122002004.

It is not an unprimeable number, because it can be changed into a prime (12122002019) 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, 42696 + ... + 161452.

It is an arithmetic number, because the mean of its divisors is an integer number (679770792).

Almost surely, 2^12122002018 is an apocalyptic number.

12122002018 is a deficient number, since it is larger than the sum of its proper divisors (9630663326).

12122002018 is a wasteful number, since it uses less digits than its factorization.

12122002018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119106.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122002018 its reverse (81020022121), we get a palindrome (93142024139).

The spelling of 12122002018 in words is "twelve billion, one hundred twenty-two million, two thousand, eighteen".