21120222001102 has 48 divisors (see below), whose sum is σ = 37710840412080. Its totient is φ = 8840748817152.

The previous prime is 21120222001097. The next prime is 21120222001181. The reversal of 21120222001102 is 20110022202112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192057078 + ... + 192167014.

It is an arithmetic number, because the mean of its divisors is an integer number (785642508585).

Almost surely, 2^{21120222001102} is an apocalyptic number.

21120222001102 is a deficient number, since it is larger than the sum of its proper divisors (16590618410978).

21120222001102 is a wasteful number, since it uses less digits than its factorization.

21120222001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155585 (or 155578 counting only the distinct ones).

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

Adding to 21120222001102 its reverse (20110022202112), we get a palindrome (41230244203214).

The spelling of 21120222001102 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, one thousand, one hundred two".