212202979 has 8 divisors (see below), whose sum is σ = 221760000. Its totient is φ = 202856136.

The previous prime is 212202973. The next prime is 212202983. The reversal of 212202979 is 979202212.

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

It is not a de Polignac number, because 212202979 - 2¹⁷ = 212071907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212202973) 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, 50479 + ... + 54520.

It is an arithmetic number, because the mean of its divisors is an integer number (27720000).

Almost surely, 2^212202979 is an apocalyptic number.

212202979 is a deficient number, since it is larger than the sum of its proper divisors (9557021).

212202979 is a wasteful number, since it uses less digits than its factorization.

212202979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105089.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 212202979 is about 14567.1884384050. The cubic root of 212202979 is about 596.4634352879.

The spelling of 212202979 in words is "two hundred twelve million, two hundred two thousand, nine hundred seventy-nine".