21202022102102 has 8 divisors (see below), whose sum is σ = 32828937448512. Its totient is φ = 10259042952600.

The previous prime is 21202022102099. The next prime is 21202022102117. The reversal of 21202022102102 is 20120122020212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170984049149 + ... + 170984049272.

It is an arithmetic number, because the mean of its divisors is an integer number (4103617181064).

Almost surely, 2^{21202022102102} is an apocalyptic number.

21202022102102 is a deficient number, since it is larger than the sum of its proper divisors (11626915346410).

21202022102102 is a wasteful number, since it uses less digits than its factorization.

21202022102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341968098454.

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

Adding to 21202022102102 its reverse (20120122020212), we get a palindrome (41322144122314).

The spelling of 21202022102102 in words is "twenty-one trillion, two hundred two billion, twenty-two million, one hundred two thousand, one hundred two".