21211000212022 has 8 divisors (see below), whose sum is σ = 31816627994376. Its totient is φ = 10605457547232.

The previous prime is 21211000212013. The next prime is 21211000212041. The reversal of 21211000212022 is 22021200011212.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21211000211987 and 21211000212005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20652708 + ... + 21655399.

It is an arithmetic number, because the mean of its divisors is an integer number (3977078499297).

Almost surely, 2^{21211000212022} is an apocalyptic number.

21211000212022 is a deficient number, since it is larger than the sum of its proper divisors (10605627782354).

21211000212022 is a wasteful number, since it uses less digits than its factorization.

21211000212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42558782.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21211000212022 its reverse (22021200011212), we get a palindrome (43232200223234).

The spelling of 21211000212022 in words is "twenty-one trillion, two hundred eleven billion, two hundred twelve thousand, twenty-two".