212151001 has 2 divisors, whose sum is σ = 212151002. Its totient is φ = 212151000.

The previous prime is 212150989. The next prime is 212151029. The reversal of 212151001 is 100151212.

212151001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188375625 + 23775376 = 13725^2 + 4876^2 .

It is a cyclic number.

It is not a de Polignac number, because 212151001 - 2⁵ = 212150969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212151031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106075500 + 106075501.

It is an arithmetic number, because the mean of its divisors is an integer number (106075501).

Almost surely, 2^212151001 is an apocalyptic number.

It is an amenable number.

212151001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212151001 is an equidigital number, since it uses as much as digits as its factorization.

212151001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 212151001 is about 14565.4042511700. The cubic root of 212151001 is about 596.4147311207.

The spelling of 212151001 in words is "two hundred twelve million, one hundred fifty-one thousand, one".