10511222456 has 96 divisors (see below), whose sum is σ = 24375543840. Its totient is φ = 4227455232.

The previous prime is 10511222443. The next prime is 10511222459. The reversal of 10511222456 is 65422211501.

It is a super-2 number, since 2×10511222456² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10511222459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466850 + ... + 488846.

It is an arithmetic number, because the mean of its divisors is an integer number (253911915).

Almost surely, 2^10511222456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10511222456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12187771920).

10511222456 is an abundant number, since it is smaller than the sum of its proper divisors (13864321384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10511222456 is a wasteful number, since it uses less digits than its factorization.

10511222456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22093 (or 22082 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 10511222456 its reverse (65422211501), we get a palindrome (75933433957).

The spelling of 10511222456 in words is "ten billion, five hundred eleven million, two hundred twenty-two thousand, four hundred fifty-six".