2242220021 has 8 divisors (see below), whose sum is σ = 2341151424. Its totient is φ = 2143408960.

The previous prime is 2242219979. The next prime is 2242220027. The reversal of 2242220021 is 1200222422.

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

It is a cyclic number.

It is not a de Polignac number, because 2242220021 - 2¹⁰ = 2242218997 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 (2242220027) 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, 9101 + ... + 67581.

It is an arithmetic number, because the mean of its divisors is an integer number (292643928).

Almost surely, 2^2242220021 is an apocalyptic number.

It is an amenable number.

2242220021 is a deficient number, since it is larger than the sum of its proper divisors (98931403).

2242220021 is a wasteful number, since it uses less digits than its factorization.

2242220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60171.

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

The square root of 2242220021 is about 47352.0857090794. The cubic root of 2242220021 is about 1308.8586334920.

Adding to 2242220021 its reverse (1200222422), we get a palindrome (3442442443).

The spelling of 2242220021 in words is "two billion, two hundred forty-two million, two hundred twenty thousand, twenty-one".