2021722053 has 8 divisors (see below), whose sum is σ = 2902985568. Its totient is φ = 1244136624.

The previous prime is 2021722039. The next prime is 2021722063. The reversal of 2021722053 is 3502271202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021722053 - 2¹⁶ = 2021656517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021722033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25919475 + ... + 25919552.

It is an arithmetic number, because the mean of its divisors is an integer number (362873196).

Almost surely, 2^2021722053 is an apocalyptic number.

It is an amenable number.

2021722053 is a deficient number, since it is larger than the sum of its proper divisors (881263515).

2021722053 is a wasteful number, since it uses less digits than its factorization.

2021722053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51839043.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 2021722053 is about 44963.5636154431. The cubic root of 2021722053 is about 1264.4659804936.

Adding to 2021722053 its reverse (3502271202), we get a palindrome (5523993255).

The spelling of 2021722053 in words is "two billion, twenty-one million, seven hundred twenty-two thousand, fifty-three".