10621225255 has 4 divisors (see below), whose sum is σ = 12745470312. Its totient is φ = 8496980200.

The previous prime is 10621225229. The next prime is 10621225261. The reversal of 10621225255 is 55252212601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10621225255 - 2²¹ = 10619128103 is a prime.

It is a super-2 number, since 2×10621225255² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062122521 + ... + 1062122530.

It is an arithmetic number, because the mean of its divisors is an integer number (3186367578).

Almost surely, 2^10621225255 is an apocalyptic number.

10621225255 is a deficient number, since it is larger than the sum of its proper divisors (2124245057).

10621225255 is an equidigital number, since it uses as much as digits as its factorization.

10621225255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124245056.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 10621225255 its reverse (55252212601), we get a palindrome (65873437856).

The spelling of 10621225255 in words is "ten billion, six hundred twenty-one million, two hundred twenty-five thousand, two hundred fifty-five".