2021224701 has 4 divisors (see below), whose sum is σ = 2694966272. Its totient is φ = 1347483132.

The previous prime is 2021224679. The next prime is 2021224703. The reversal of 2021224701 is 1074221202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2021224701 - 2⁶ = 2021224637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021224703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336870781 + ... + 336870786.

It is an arithmetic number, because the mean of its divisors is an integer number (673741568).

Almost surely, 2^2021224701 is an apocalyptic number.

It is an amenable number.

2021224701 is a deficient number, since it is larger than the sum of its proper divisors (673741571).

2021224701 is an equidigital number, since it uses as much as digits as its factorization.

2021224701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673741570.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2021224701 is about 44958.0326638077. The cubic root of 2021224701 is about 1264.3622840335.

Adding to 2021224701 its reverse (1074221202), we get a palindrome (3095445903).

The spelling of 2021224701 in words is "two billion, twenty-one million, two hundred twenty-four thousand, seven hundred one".