22121122002002 has 32 divisors (see below), whose sum is σ = 35367493553280. Its totient is φ = 10340627155200.

The previous prime is 22121122001983. The next prime is 22121122002037. The reversal of 22121122002002 is 20020022112122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185724524 + ... + 185843592.

It is an arithmetic number, because the mean of its divisors is an integer number (1105234173540).

Almost surely, 2^{22121122002002} is an apocalyptic number.

22121122002002 is a deficient number, since it is larger than the sum of its proper divisors (13246371551278).

22121122002002 is a wasteful number, since it uses less digits than its factorization.

22121122002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155426.

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

Adding to 22121122002002 its reverse (20020022112122), we get a palindrome (42141144114124).

The spelling of 22121122002002 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, two thousand, two".