212000011001001 has 12 divisors (see below), whose sum is σ = 308425275798640. Its totient is φ = 140316554043000.

The previous prime is 212000011000969. The next prime is 212000011001047. The reversal of 212000011001001 is 100100110000212.

It is a happy number.

It is not a de Polignac number, because 212000011001001 - 2⁵ = 212000011000969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212000011201001) 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 11 ways as a sum of consecutive naturals, for example, 84732217375 + ... + 84732219876.

Almost surely, 2^{212000011001001} is an apocalyptic number.

It is an amenable number.

212000011001001 is a deficient number, since it is larger than the sum of its proper divisors (96425264797639).

212000011001001 is a wasteful number, since it uses less digits than its factorization.

212000011001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169464437396 (or 169464437393 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 212000011001001 its reverse (100100110000212), we get a palindrome (312100121001213).

The spelling of 212000011001001 in words is "two hundred twelve trillion, eleven million, one thousand, one".