2021343212444 has 12 divisors (see below), whose sum is σ = 3537406937568. Its totient is φ = 1010655516000.

The previous prime is 2021343212423. The next prime is 2021343212461. The reversal of 2021343212444 is 4442123431202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021343212444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3737657 + ... + 4244144.

It is an arithmetic number, because the mean of its divisors is an integer number (294783911464).

Almost surely, 2^{2021343212444} is an apocalyptic number.

It is an amenable number.

2021343212444 is a deficient number, since it is larger than the sum of its proper divisors (1516063725124).

2021343212444 is a wasteful number, since it uses less digits than its factorization.

2021343212444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045116 (or 8045114 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 2021343212444 its reverse (4442123431202), we get a palindrome (6463466643646).

The spelling of 2021343212444 in words is "two trillion, twenty-one billion, three hundred forty-three million, two hundred twelve thousand, four hundred forty-four".