4021061216444 has 12 divisors (see below), whose sum is σ = 7450789901184. Its totient is φ = 1892264101824.

The previous prime is 4021061216437. The next prime is 4021061216507. The reversal of 4021061216444 is 4446121601204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29566626524 + ... + 29566626659.

It is an arithmetic number, because the mean of its divisors is an integer number (620899158432).

Almost surely, 2^{4021061216444} is an apocalyptic number.

It is an amenable number.

4021061216444 is a deficient number, since it is larger than the sum of its proper divisors (3429728684740).

4021061216444 is a wasteful number, since it uses less digits than its factorization.

4021061216444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59133253204 (or 59133253202 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 4021061216444 its reverse (4446121601204), we get a palindrome (8467182817648).

The spelling of 4021061216444 in words is "four trillion, twenty-one billion, sixty-one million, two hundred sixteen thousand, four hundred forty-four".