212426611 has 8 divisors (see below), whose sum is σ = 226542960. Its totient is φ = 198490368.

The previous prime is 212426603. The next prime is 212426623. The reversal of 212426611 is 116624212.

It is a happy number.

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

It is not a de Polignac number, because 212426611 - 2³ = 212426603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212426651) 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, 42586 + ... + 47311.

It is an arithmetic number, because the mean of its divisors is an integer number (28317870).

Almost surely, 2^212426611 is an apocalyptic number.

212426611 is a deficient number, since it is larger than the sum of its proper divisors (14116349).

212426611 is a wasteful number, since it uses less digits than its factorization.

212426611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90053.

The product of its digits is 1152, while the sum is 25.

The square root of 212426611 is about 14574.8622978058. The cubic root of 212426611 is about 596.6728911612.

The spelling of 212426611 in words is "two hundred twelve million, four hundred twenty-six thousand, six hundred eleven".