211212012001 has 4 divisors (see below), whose sum is σ = 211213358272. Its totient is φ = 211210665732.

The previous prime is 211212011987. The next prime is 211212012073. The reversal of 211212012001 is 100210212112.

211212012001 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211212012001 - 2¹³ = 211212003809 is a prime.

It is a super-2 number, since 2×211212012001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212082001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401181 + ... + 763786.

It is an arithmetic number, because the mean of its divisors is an integer number (52803339568).

Almost surely, 2^211212012001 is an apocalyptic number.

It is an amenable number.

211212012001 is a deficient number, since it is larger than the sum of its proper divisors (1346271).

211212012001 is a wasteful number, since it uses less digits than its factorization.

211212012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346270.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211212012001 its reverse (100210212112), we get a palindrome (311422224113).

The spelling of 211212012001 in words is "two hundred eleven billion, two hundred twelve million, twelve thousand, one".