21222002022002 has 16 divisors (see below), whose sum is σ = 32153861713920. Its totient is φ = 10504413769248.

The previous prime is 21222002021963. The next prime is 21222002022007. The reversal of 21222002022002 is 20022020022212.

It is not an unprimeable number, because it can be changed into a prime (21222002022007) 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, 91296602 + ... + 91528757.

It is an arithmetic number, because the mean of its divisors is an integer number (2009616357120).

Almost surely, 2^{21222002022002} is an apocalyptic number.

21222002022002 is a deficient number, since it is larger than the sum of its proper divisors (10931859691918).

21222002022002 is a wasteful number, since it uses less digits than its factorization.

21222002022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182825945.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 21222002022002 its reverse (20022020022212), we get a palindrome (41244022044214).

The spelling of 21222002022002 in words is "twenty-one trillion, two hundred twenty-two billion, two million, twenty-two thousand, two".