21120011102 has 8 divisors (see below), whose sum is σ = 32452700112. Its totient is φ = 10302444400.

The previous prime is 21120011093. The next prime is 21120011113. The reversal of 21120011102 is 20111002112.

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, 128780474 + ... + 128780637.

It is an arithmetic number, because the mean of its divisors is an integer number (4056587514).

Almost surely, 2^21120011102 is an apocalyptic number.

21120011102 is a deficient number, since it is larger than the sum of its proper divisors (11332689010).

21120011102 is a wasteful number, since it uses less digits than its factorization.

21120011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257561154.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21120011102 its reverse (20111002112), we get a palindrome (41231013214).

The spelling of 21120011102 in words is "twenty-one billion, one hundred twenty million, eleven thousand, one hundred two".