21102022020122 has 8 divisors (see below), whose sum is σ = 31654787395296. Its totient is φ = 10550426221692.

The previous prime is 21102022020109. The next prime is 21102022020137. The reversal of 21102022020122 is 22102022020112.

It is a happy number.

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 21102022020122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292349078 + ... + 292421249.

It is an arithmetic number, because the mean of its divisors is an integer number (3956848424412).

Almost surely, 2^{21102022020122} is an apocalyptic number.

21102022020122 is a deficient number, since it is larger than the sum of its proper divisors (10552765375174).

21102022020122 is a wasteful number, since it uses less digits than its factorization.

21102022020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584788372.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21102022020122 its reverse (22102022020112), we get a palindrome (43204044040234).

The spelling of 21102022020122 in words is "twenty-one trillion, one hundred two billion, twenty-two million, twenty thousand, one hundred twenty-two".