1050021661444 has 96 divisors (see below), whose sum is σ = 2152507392000. Its totient is φ = 438915020544.

The previous prime is 1050021661427. The next prime is 1050021661517. The reversal of 1050021661444 is 4441661200501.

It is a super-2 number, since 2×1050021661444² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316365217 + ... + 316368535.

It is an arithmetic number, because the mean of its divisors is an integer number (22421952000).

Almost surely, 2^{1050021661444} is an apocalyptic number.

1050021661444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1050021661444 is an abundant number, since it is smaller than the sum of its proper divisors (1102485730556).

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

1050021661444 is a wasteful number, since it uses less digits than its factorization.

1050021661444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105 (or 5103 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 1050021661444 its reverse (4441661200501), we get a palindrome (5491682861945).

The spelling of 1050021661444 in words is "one trillion, fifty billion, twenty-one million, six hundred sixty-one thousand, four hundred forty-four".