21202210112 has 28 divisors (see below), whose sum is σ = 42150121440. Its totient is φ = 10581707136.

The previous prime is 21202210111. The next prime is 21202210121. The reversal of 21202210112 is 21101220212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202210111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267812 + ... + 337827.

It is an arithmetic number, because the mean of its divisors is an integer number (1505361480).

Almost surely, 2^21202210112 is an apocalyptic number.

It is an amenable number.

21202210112 is a deficient number, since it is larger than the sum of its proper divisors (20947911328).

21202210112 is an equidigital number, since it uses as much as digits as its factorization.

21202210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606198 (or 606188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21202210112 its reverse (21101220212), we get a palindrome (42303430324).

The spelling of 21202210112 in words is "twenty-one billion, two hundred two million, two hundred ten thousand, one hundred twelve".