1050021321444 has 48 divisors (see below), whose sum is σ = 2865555268800. Its totient is φ = 331585679808.

The previous prime is 1050021321431. The next prime is 1050021321449. The reversal of 1050021321444 is 4441231200501.

1050021321444 is a `hidden beast` number, since 1 + 0 + 5 + 0 + 0 + 213 + 2 + 1 + 444 = 666.

It is a super-2 number, since 2×1050021321444² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1050021321449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255851097 + ... + 255855200.

It is an arithmetic number, because the mean of its divisors is an integer number (59699068100).

Almost surely, 2^{1050021321444} is an apocalyptic number.

It is an amenable number.

1050021321444 is an abundant number, since it is smaller than the sum of its proper divisors (1815533947356).

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

1050021321444 is a wasteful number, since it uses less digits than its factorization.

1050021321444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511706329 (or 511706321 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1050021321444 its reverse (4441231200501), we get a palindrome (5491252521945).

The spelling of 1050021321444 in words is "one trillion, fifty billion, twenty-one million, three hundred twenty-one thousand, four hundred forty-four".