4420111416621 has 4 divisors (see below), whose sum is σ = 5893481888832. Its totient is φ = 2946740944412.

The previous prime is 4420111416619. The next prime is 4420111416649. The reversal of 4420111416621 is 1266141110244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4420111416621 - 2¹ = 4420111416619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420111016621) 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, 736685236101 + ... + 736685236106.

It is an arithmetic number, because the mean of its divisors is an integer number (1473370472208).

Almost surely, 2^{4420111416621} is an apocalyptic number.

It is an amenable number.

4420111416621 is a deficient number, since it is larger than the sum of its proper divisors (1473370472211).

4420111416621 is a wasteful number, since it uses less digits than its factorization.

4420111416621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473370472210.

The product of its (nonzero) digits is 9216, while the sum is 33.

Adding to 4420111416621 its reverse (1266141110244), we get a palindrome (5686252526865).

The spelling of 4420111416621 in words is "four trillion, four hundred twenty billion, one hundred eleven million, four hundred sixteen thousand, six hundred twenty-one".