12122002021210 has 32 divisors (see below), whose sum is σ = 22373561495952. Its totient is φ = 4727105940480.

The previous prime is 12122002021177. The next prime is 12122002021237. The reversal of 12122002021210 is 1212020022121.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2519645100921 + 9602356920289 = 1587339^2 + 3098767^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87860869 + ... + 87998728.

Almost surely, 2^{12122002021210} is an apocalyptic number.

12122002021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122002021210 is a deficient number, since it is larger than the sum of its proper divisors (10251559474742).

12122002021210 is a wasteful number, since it uses less digits than its factorization.

12122002021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175859778.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122002021210 its reverse (1212020022121), we get a palindrome (13334022043331).

The spelling of 12122002021210 in words is "twelve trillion, one hundred twenty-two billion, two million, twenty-one thousand, two hundred ten".