21022021211122 has 8 divisors (see below), whose sum is σ = 31932184118400. Its totient is φ = 10377959838324.

The previous prime is 21022021211077. The next prime is 21022021211131. The reversal of 21022021211122 is 22111212022012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21022021211122.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 66525383422 + ... + 66525383737.

It is an arithmetic number, because the mean of its divisors is an integer number (3991523014800).

Almost surely, 2^{21022021211122} is an apocalyptic number.

21022021211122 is a deficient number, since it is larger than the sum of its proper divisors (10910162907278).

21022021211122 is a wasteful number, since it uses less digits than its factorization.

21022021211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133050767240.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21022021211122 its reverse (22111212022012), we get a palindrome (43133233233134).

The spelling of 21022021211122 in words is "twenty-one trillion, twenty-two billion, twenty-one million, two hundred eleven thousand, one hundred twenty-two".