2212075981 has 8 divisors (see below), whose sum is σ = 2218347360. Its totient is φ = 2205814032.

The previous prime is 2212075939. The next prime is 2212076017. The reversal of 2212075981 is 1895702122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212075981 is a prime.

It is a super-3 number, since 3×2212075981³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212075981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212075181) 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 7 ways as a sum of consecutive naturals, for example, 820071 + ... + 822763.

It is an arithmetic number, because the mean of its divisors is an integer number (277293420).

Almost surely, 2^2212075981 is an apocalyptic number.

It is an amenable number.

2212075981 is a deficient number, since it is larger than the sum of its proper divisors (6271379).

2212075981 is a wasteful number, since it uses less digits than its factorization.

2212075981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 2212075981 is about 47032.7118184780. The cubic root of 2212075981 is about 1302.9667904711.

The spelling of 2212075981 in words is "two billion, two hundred twelve million, seventy-five thousand, nine hundred eighty-one".