21226100750 has 64 divisors (see below), whose sum is σ = 40719526848. Its totient is φ = 8280720000.

The previous prime is 21226100747. The next prime is 21226100759. The reversal of 21226100750 is 5700162212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21226100759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11404820 + ... + 11406680.

It is an arithmetic number, because the mean of its divisors is an integer number (636242607).

Almost surely, 2^21226100750 is an apocalyptic number.

21226100750 is a deficient number, since it is larger than the sum of its proper divisors (19493426098).

21226100750 is a wasteful number, since it uses less digits than its factorization.

21226100750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 21226100750 its reverse (5700162212), we get a palindrome (26926262962).

The spelling of 21226100750 in words is "twenty-one billion, two hundred twenty-six million, one hundred thousand, seven hundred fifty".