212427001 has 4 divisors (see below), whose sum is σ = 219752100. Its totient is φ = 205101904.

The previous prime is 212426987. The next prime is 212427013. The reversal of 212427001 is 100724212.

It is a happy number.

212427001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 143520400 + 68906601 = 11980^2 + 8301^2 .

It is a cyclic number.

It is not a de Polignac number, because 212427001 - 2⁵ = 212426969 is a prime.

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 212427001.

It is not an unprimeable number, because it can be changed into a prime (212427031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3662506 + ... + 3662563.

It is an arithmetic number, because the mean of its divisors is an integer number (54938025).

Almost surely, 2^212427001 is an apocalyptic number.

It is an amenable number.

212427001 is a deficient number, since it is larger than the sum of its proper divisors (7325099).

212427001 is an equidigital number, since it uses as much as digits as its factorization.

212427001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325098.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 212427001 is about 14574.8756769998. The cubic root of 212427001 is about 596.6732563105.

The spelling of 212427001 in words is "two hundred twelve million, four hundred twenty-seven thousand, one".