4442102011421 has 4 divisors (see below), whose sum is σ = 4443302258844. Its totient is φ = 4440901764000.

The previous prime is 4442102011393. The next prime is 4442102011481. The reversal of 4442102011421 is 1241102012444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 840267388921 + 3601834622500 = 916661^2 + 1897850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4442102011421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442102011481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600118160 + ... + 600125561.

It is an arithmetic number, because the mean of its divisors is an integer number (1110825564711).

Almost surely, 2^{4442102011421} is an apocalyptic number.

It is an amenable number.

4442102011421 is a deficient number, since it is larger than the sum of its proper divisors (1200247423).

4442102011421 is a wasteful number, since it uses less digits than its factorization.

4442102011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200247422.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 4442102011421 its reverse (1241102012444), we get a palindrome (5683204023865).

The spelling of 4442102011421 in words is "four trillion, four hundred forty-two billion, one hundred two million, eleven thousand, four hundred twenty-one".