2212209973 has 4 divisors (see below), whose sum is σ = 2213281260. Its totient is φ = 2211138688.

The previous prime is 2212209971. The next prime is 2212209991. The reversal of 2212209973 is 3799022122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 214388164 + 1997821809 = 14642^2 + 44697^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212209973 - 2¹ = 2212209971 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 (2212209971) 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 3 ways as a sum of consecutive naturals, for example, 532540 + ... + 536677.

It is an arithmetic number, because the mean of its divisors is an integer number (553320315).

Almost surely, 2^2212209973 is an apocalyptic number.

It is an amenable number.

2212209973 is a deficient number, since it is larger than the sum of its proper divisors (1071287).

2212209973 is a wasteful number, since it uses less digits than its factorization.

2212209973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071286.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2212209973 is about 47034.1362523008. The cubic root of 2212209973 is about 1302.9930981270.

The spelling of 2212209973 in words is "two billion, two hundred twelve million, two hundred nine thousand, nine hundred seventy-three".