21112200122 has 16 divisors (see below), whose sum is σ = 34111808640. Its totient is φ = 9741953712.

The previous prime is 21112200119. The next prime is 21112200139. The reversal of 21112200122 is 22100221112.

It is a junction number, because it is equal to n+sod(n) for n = 21112200097 and 21112200106.

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 7 ways as a sum of consecutive naturals, for example, 34883 + ... + 208425.

It is an arithmetic number, because the mean of its divisors is an integer number (2131988040).

Almost surely, 2^21112200122 is an apocalyptic number.

21112200122 is a deficient number, since it is larger than the sum of its proper divisors (12999608518).

21112200122 is a wasteful number, since it uses less digits than its factorization.

21112200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178237.

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

Adding to 21112200122 its reverse (22100221112), we get a palindrome (43212421234).

The spelling of 21112200122 in words is "twenty-one billion, one hundred twelve million, two hundred thousand, one hundred twenty-two".