21202011002022 has 32 divisors (see below), whose sum is σ = 44903708508672. Its totient is φ = 6650821329024.

The previous prime is 21202011002009. The next prime is 21202011002069. The reversal of 21202011002022 is 22020011020212.

It is a junction number, because it is equal to n+sod(n) for n = 21202011001992 and 21202011002010.

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, 11479858 + ... + 13198149.

It is an arithmetic number, because the mean of its divisors is an integer number (1403240890896).

Almost surely, 2^{21202011002022} is an apocalyptic number.

21202011002022 is an abundant number, since it is smaller than the sum of its proper divisors (23701697506650).

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

21202011002022 is a wasteful number, since it uses less digits than its factorization.

21202011002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24686452.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21202011002022 its reverse (22020011020212), we get a palindrome (43222022022234).

The spelling of 21202011002022 in words is "twenty-one trillion, two hundred two billion, eleven million, two thousand, twenty-two".