12122121002 has 16 divisors (see below), whose sum is σ = 18563368320. Its totient is φ = 5935131648.

The previous prime is 12122120987. The next prime is 12122121007. The reversal of 12122121002 is 20012122121.

It is not an unprimeable number, because it can be changed into a prime (12122121007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169538 + ... + 230189.

It is an arithmetic number, because the mean of its divisors is an integer number (1160210520).

Almost surely, 2^12122121002 is an apocalyptic number.

12122121002 is a deficient number, since it is larger than the sum of its proper divisors (6441247318).

12122121002 is a wasteful number, since it uses less digits than its factorization.

12122121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400045.

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

Adding to 12122121002 its reverse (20012122121), we get a palindrome (32134243123).

The spelling of 12122121002 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, two".