4420121001 has 4 divisors (see below), whose sum is σ = 5893494672. Its totient is φ = 2946747332.

The previous prime is 4420120981. The next prime is 4420121003. The reversal of 4420121001 is 1001210244.

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 4420121001 - 2¹⁸ = 4419858857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4420121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736686831 + ... + 736686836.

It is an arithmetic number, because the mean of its divisors is an integer number (1473373668).

Almost surely, 2^4420121001 is an apocalyptic number.

It is an amenable number.

4420121001 is a deficient number, since it is larger than the sum of its proper divisors (1473373671).

4420121001 is a wasteful number, since it uses less digits than its factorization.

4420121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473373670.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 4420121001 is about 66483.9905616382. The cubic root of 4420121001 is about 1641.1365561265.

Adding to 4420121001 its reverse (1001210244), we get a palindrome (5421331245).

The spelling of 4420121001 in words is "four billion, four hundred twenty million, one hundred twenty-one thousand, one".