21111101102202 has 8 divisors (see below), whose sum is σ = 42222202204416. Its totient is φ = 7037033700732.

The previous prime is 21111101102197. The next prime is 21111101102261. The reversal of 21111101102202 is 20220110111112.

It is a happy number.

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

21111101102202 is an admirable 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, 1759258425178 + ... + 1759258425189.

It is an arithmetic number, because the mean of its divisors is an integer number (5277775275552).

Almost surely, 2^{21111101102202} is an apocalyptic number.

21111101102202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21111101102202 is a wasteful number, since it uses less digits than its factorization.

21111101102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518516850372.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 21111101102202 its reverse (20220110111112), we get a palindrome (41331211213314).

The spelling of 21111101102202 in words is "twenty-one trillion, one hundred eleven billion, one hundred one million, one hundred two thousand, two hundred two".