10501121256 has 32 divisors (see below), whose sum is σ = 26962340640. Its totient is φ = 3405768768.

The previous prime is 10501121249. The next prime is 10501121287. The reversal of 10501121256 is 65212110501.

10501121256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10501121256² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5911906 + ... + 5913681.

It is an arithmetic number, because the mean of its divisors is an integer number (842573145).

Almost surely, 2^10501121256 is an apocalyptic number.

It is an amenable number.

10501121256 is an abundant number, since it is smaller than the sum of its proper divisors (16461219384).

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

10501121256 is a wasteful number, since it uses less digits than its factorization.

10501121256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11825633 (or 11825629 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 10501121256 its reverse (65212110501), we get a palindrome (75713231757).

The spelling of 10501121256 in words is "ten billion, five hundred one million, one hundred twenty-one thousand, two hundred fifty-six".