1012021004444 has 24 divisors (see below), whose sum is σ = 1799826956928. Its totient is φ = 497815255280.

The previous prime is 1012021004431. The next prime is 1012021004461. The reversal of 1012021004444 is 4444001202101.

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, 3682634 + ... + 3947889.

It is an arithmetic number, because the mean of its divisors is an integer number (74992789872).

Almost surely, 2^{1012021004444} is an apocalyptic number.

It is an amenable number.

1012021004444 is a deficient number, since it is larger than the sum of its proper divisors (787805952484).

1012021004444 is a wasteful number, since it uses less digits than its factorization.

1012021004444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7631065 (or 7631063 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1012021004444 its reverse (4444001202101), we get a palindrome (5456022206545).

The spelling of 1012021004444 in words is "one trillion, twelve billion, twenty-one million, four thousand, four hundred forty-four".