21200022002022 has 32 divisors (see below), whose sum is σ = 44894690640000. Its totient is φ = 6650909309568.

The previous prime is 21200022001999. The next prime is 21200022002083. The reversal of 21200022002022 is 22020022000212.

It is a junction number, because it is equal to n+sod(n) for n = 21200022001992 and 21200022002010.

It is a congruent number.

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, 7852629 + ... + 10201167.

It is an arithmetic number, because the mean of its divisors is an integer number (1402959082500).

Almost surely, 2^{21200022002022} is an apocalyptic number.

21200022002022 is an abundant number, since it is smaller than the sum of its proper divisors (23694668637978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21200022002022 is a wasteful number, since it uses less digits than its factorization.

21200022002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437060.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 21200022002022 its reverse (22020022000212), we get a palindrome (43220044002234).

The spelling of 21200022002022 in words is "twenty-one trillion, two hundred billion, twenty-two million, two thousand, twenty-two".