21226053433 has 32 divisors (see below), whose sum is σ = 25088716800. Its totient is φ = 17780103936.

The previous prime is 21226053427. The next prime is 21226053451. The reversal of 21226053433 is 33435062212.

It is a de Polignac number, because none of the positive numbers 2^k-21226053433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21226053395 and 21226053404.

It is not an unprimeable number, because it can be changed into a prime (21226053413) 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, 898035 + ... + 921367.

It is an arithmetic number, because the mean of its divisors is an integer number (784022400).

Almost surely, 2^21226053433 is an apocalyptic number.

It is an amenable number.

21226053433 is a deficient number, since it is larger than the sum of its proper divisors (3862663367).

21226053433 is a wasteful number, since it uses less digits than its factorization.

21226053433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23521.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 21226053433 in words is "twenty-one billion, two hundred twenty-six million, fifty-three thousand, four hundred thirty-three".