12122002222001 has 6 divisors (see below), whose sum is σ = 14101104625650. Its totient is φ = 10390287618816.

The previous prime is 12122002221949. The next prime is 12122002222013. The reversal of 12122002222001 is 10022220022121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8258611488400 + 3863390733601 = 2873780^2 + 1965551^2 .

It is not a de Polignac number, because 12122002222001 - 2⁶ = 12122002221937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122002222501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123693900176 + ... + 123693900273.

It is an arithmetic number, because the mean of its divisors is an integer number (2350184104275).

Almost surely, 2^{12122002222001} is an apocalyptic number.

It is an amenable number.

12122002222001 is a deficient number, since it is larger than the sum of its proper divisors (1979102403649).

12122002222001 is an equidigital number, since it uses as much as digits as its factorization.

12122002222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247387800463 (or 247387800456 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12122002222001 its reverse (10022220022121), we get a palindrome (22144222244122).

The spelling of 12122002222001 in words is "twelve trillion, one hundred twenty-two billion, two million, two hundred twenty-two thousand, one".