21022010222022 has 16 divisors (see below), whose sum is σ = 46715578271280. Its totient is φ = 7007336740656.

The previous prime is 21022010222011. The next prime is 21022010222029. The reversal of 21022010222022 is 22022201022012.

21022010222022 is a `hidden beast` number, since 210 + 220 + 10 + 2 + 220 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21022010221986 and 21022010222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022010222029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 194648242743 + ... + 194648242850.

It is an arithmetic number, because the mean of its divisors is an integer number (2919723641955).

Almost surely, 2^{21022010222022} is an apocalyptic number.

21022010222022 is an abundant number, since it is smaller than the sum of its proper divisors (25693568049258).

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

21022010222022 is a wasteful number, since it uses less digits than its factorization.

21022010222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389296485604 (or 389296485598 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 21022010222022 its reverse (22022201022012), we get a palindrome (43044211244034).

The spelling of 21022010222022 in words is "twenty-one trillion, twenty-two billion, ten million, two hundred twenty-two thousand, twenty-two".