2243550021 has 16 divisors (see below), whose sum is σ = 3015221760. Its totient is φ = 1483829360.

The previous prime is 2243550013. The next prime is 2243550031. The reversal of 2243550021 is 1200553422.

It is a cyclic number.

It is not a de Polignac number, because 2243550021 - 2³ = 2243550013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2243549973 and 2243550000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243550031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233176 + ... + 242606.

It is an arithmetic number, because the mean of its divisors is an integer number (188451360).

Almost surely, 2^2243550021 is an apocalyptic number.

It is an amenable number.

2243550021 is a deficient number, since it is larger than the sum of its proper divisors (771671739).

2243550021 is a wasteful number, since it uses less digits than its factorization.

2243550021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2243550021 is about 47366.1273591160. The cubic root of 2243550021 is about 1309.1173707987.

The spelling of 2243550021 in words is "two billion, two hundred forty-three million, five hundred fifty thousand, twenty-one".