2021004422 has 4 divisors (see below), whose sum is σ = 3031506636. Its totient is φ = 1010502210.

The previous prime is 2021004397. The next prime is 2021004437. The reversal of 2021004422 is 2244001202.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2021004422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505251104 + ... + 505251107.

It is an arithmetic number, because the mean of its divisors is an integer number (757876659).

Almost surely, 2^2021004422 is an apocalyptic number.

2021004422 is a deficient number, since it is larger than the sum of its proper divisors (1010502214).

2021004422 is a wasteful number, since it uses less digits than its factorization.

2021004422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010502213.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2021004422 is about 44955.5827678832. The cubic root of 2021004422 is about 1264.3163510606.

Adding to 2021004422 its reverse (2244001202), we get a palindrome (4265005624).

The spelling of 2021004422 in words is "two billion, twenty-one million, four thousand, four hundred twenty-two".