1012221003444 has 24 divisors (see below), whose sum is σ = 2699256009408. Its totient is φ = 289206000960.

The previous prime is 1012221003427. The next prime is 1012221003463. The reversal of 1012221003444 is 4443001222101.

It is a super-2 number, since 2×1012221003444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6025124937 + ... + 6025125104.

It is an arithmetic number, because the mean of its divisors is an integer number (112469000392).

Almost surely, 2^{1012221003444} is an apocalyptic number.

1012221003444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1012221003444 is an abundant number, since it is smaller than the sum of its proper divisors (1687035005964).

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

1012221003444 is a wasteful number, since it uses less digits than its factorization.

1012221003444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12050250055 (or 12050250053 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1012221003444 its reverse (4443001222101), we get a palindrome (5455222225545).

The spelling of 1012221003444 in words is "one trillion, twelve billion, two hundred twenty-one million, three thousand, four hundred forty-four".