21110201220112 has 20 divisors (see below), whose sum is σ = 41298112098880. Its totient is φ = 10452623904288.

The previous prime is 21110201220049. The next prime is 21110201220127. The reversal of 21110201220112 is 21102210201112.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 6404792412 + ... + 6404795707.

It is an arithmetic number, because the mean of its divisors is an integer number (2064905604944).

Almost surely, 2^{21110201220112} is an apocalyptic number.

It is an amenable number.

21110201220112 is a deficient number, since it is larger than the sum of its proper divisors (20187910878768).

21110201220112 is a wasteful number, since it uses less digits than its factorization.

21110201220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12809588230 (or 12809588224 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21110201220112 its reverse (21102210201112), we get a palindrome (42212411421224).

The spelling of 21110201220112 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, two hundred twenty thousand, one hundred twelve".