21202211201112 has 24 divisors (see below), whose sum is σ = 57422655336540. Its totient is φ = 7067403733680.

The previous prime is 21202211201063. The next prime is 21202211201183. The reversal of 21202211201112 is 21110211220212.

21202211201112 is a `hidden beast` number, since 212 + 0 + 221 + 120 + 1 + 112 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147237577714 + ... + 147237577857.

Almost surely, 2^{21202211201112} is an apocalyptic number.

It is an amenable number.

21202211201112 is an abundant number, since it is smaller than the sum of its proper divisors (36220444135428).

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

21202211201112 is a wasteful number, since it uses less digits than its factorization.

21202211201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294475155583 (or 294475155576 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21202211201112 its reverse (21110211220212), we get a palindrome (42312422421324).

The spelling of 21202211201112 in words is "twenty-one trillion, two hundred two billion, two hundred eleven million, two hundred one thousand, one hundred twelve".