2120202444 has 24 divisors (see below), whose sum is σ = 4953964288. Its totient is φ = 705759120.

The previous prime is 2120202443. The next prime is 2120202449. The reversal of 2120202444 is 4442020212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120202444.

It is not an unprimeable number, because it can be changed into a prime (2120202443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112792 + ... + 130239.

Almost surely, 2^2120202444 is an apocalyptic number.

It is an amenable number.

2120202444 is an abundant number, since it is smaller than the sum of its proper divisors (2833761844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120202444 is a wasteful number, since it uses less digits than its factorization.

2120202444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243765 (or 243763 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2120202444 is about 46045.6560817630. The cubic root of 2120202444 is about 1284.6725472869.

Adding to 2120202444 its reverse (4442020212), we get a palindrome (6562222656).

The spelling of 2120202444 in words is "two billion, one hundred twenty million, two hundred two thousand, four hundred forty-four".