10500220044 has 36 divisors (see below), whose sum is σ = 26594415120. Its totient is φ = 3493190880.

The previous prime is 10500219991. The next prime is 10500220069. The reversal of 10500220044 is 44002200501.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10500220044² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10500219999 and 10500220026.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268192 + ... + 304839.

Almost surely, 2^10500220044 is an apocalyptic number.

It is an amenable number.

10500220044 is an abundant number, since it is smaller than the sum of its proper divisors (16094195076).

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

10500220044 is a wasteful number, since it uses less digits than its factorization.

10500220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573550 (or 573545 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 10500220044 its reverse (44002200501), we get a palindrome (54502420545).

The spelling of 10500220044 in words is "ten billion, five hundred million, two hundred twenty thousand, forty-four".