22122121022002 has 16 divisors (see below), whose sum is σ = 33211682277120. Its totient is φ = 11051562784752.

The previous prime is 22122121021937. The next prime is 22122121022003. The reversal of 22122121022002 is 20022012122122.

It is not an unprimeable number, because it can be changed into a prime (22122121022003) 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, 17024113 + ... + 18277435.

It is an arithmetic number, because the mean of its divisors is an integer number (2075730142320).

Almost surely, 2^{22122121022002} is an apocalyptic number.

22122121022002 is a deficient number, since it is larger than the sum of its proper divisors (11089561255118).

22122121022002 is a wasteful number, since it uses less digits than its factorization.

22122121022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260897.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22122121022002 its reverse (20022012122122), we get a palindrome (42144133144124).

The spelling of 22122121022002 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, two".