21220210212022 has 8 divisors (see below), whose sum is σ = 32080947722496. Its totient is φ = 10526560971192.

The previous prime is 21220210211957. The next prime is 21220210212023. The reversal of 21220210212022 is 22021201202212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220210212023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41772067093 + ... + 41772067600.

It is an arithmetic number, because the mean of its divisors is an integer number (4010118465312).

Almost surely, 2^{21220210212022} is an apocalyptic number.

21220210212022 is a deficient number, since it is larger than the sum of its proper divisors (10860737510474).

21220210212022 is a wasteful number, since it uses less digits than its factorization.

21220210212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83544134822.

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

Adding to 21220210212022 its reverse (22021201202212), we get a palindrome (43241411414234).

The spelling of 21220210212022 in words is "twenty-one trillion, two hundred twenty billion, two hundred ten million, two hundred twelve thousand, twenty-two".