21226700116 has 12 divisors (see below), whose sum is σ = 37147746132. Its totient is φ = 10613058368.

The previous prime is 21226700111. The next prime is 21226700167. The reversal of 21226700116 is 61100762212.

It can be written as a sum of positive squares in 2 ways, for example, as 3702235716 + 17524464400 = 60846^2 + 132380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21226700111) by changing a digit.

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, 240246 + ... + 316498.

It is an arithmetic number, because the mean of its divisors is an integer number (3095645511).

Almost surely, 2^21226700116 is an apocalyptic number.

It is an amenable number.

21226700116 is a deficient number, since it is larger than the sum of its proper divisors (15921046016).

21226700116 is a wasteful number, since it uses less digits than its factorization.

21226700116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145850 (or 145848 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 21226700116 in words is "twenty-one billion, two hundred twenty-six million, seven hundred thousand, one hundred sixteen".