2021444122 has 4 divisors (see below), whose sum is σ = 3032166186. Its totient is φ = 1010722060.

The previous prime is 2021444083. The next prime is 2021444123. The reversal of 2021444122 is 2214441202.

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

It can be written as a sum of positive squares in only one way, i.e., 1775863881 + 245580241 = 42141^2 + 15671^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2021444093 and 2021444102.

It is not an unprimeable number, because it can be changed into a prime (2021444123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505361029 + ... + 505361032.

Almost surely, 2^2021444122 is an apocalyptic number.

2021444122 is a deficient number, since it is larger than the sum of its proper divisors (1010722064).

2021444122 is a wasteful number, since it uses less digits than its factorization.

2021444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010722063.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2021444122 is about 44960.4728845238. The cubic root of 2021444122 is about 1264.4080347769.

Adding to 2021444122 its reverse (2214441202), we get a palindrome (4235885324).

The spelling of 2021444122 in words is "two billion, twenty-one million, four hundred forty-four thousand, one hundred twenty-two".