2120442401 has 16 divisors (see below), whose sum is σ = 2667074688. Its totient is φ = 1637664000.

The previous prime is 2120442383. The next prime is 2120442437. The reversal of 2120442401 is 1042440212.

It is not a de Polignac number, because 2120442401 - 2¹⁰ = 2120441377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120442001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113150 + ... + 130551.

It is an arithmetic number, because the mean of its divisors is an integer number (166692168).

Almost surely, 2^2120442401 is an apocalyptic number.

It is an amenable number.

2120442401 is a deficient number, since it is larger than the sum of its proper divisors (546632287).

2120442401 is a wasteful number, since it uses less digits than its factorization.

2120442401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243832.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2120442401 is about 46048.2616501427. The cubic root of 2120442401 is about 1284.7210103543.

Adding to 2120442401 its reverse (1042440212), we get a palindrome (3162882613).

The spelling of 2120442401 in words is "two billion, one hundred twenty million, four hundred forty-two thousand, four hundred one".