212001010012009 has 8 divisors (see below), whose sum is σ = 217115523299520. Its totient is φ = 206945624046000.

The previous prime is 212001010011977. The next prime is 212001010012027. The reversal of 212001010012009 is 900210010100212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 212001010012009 - 2⁵ = 212001010011977 is a prime.

It is a super-2 number, since 2×212001010012009² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212001010012069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14781823119 + ... + 14781837460.

It is an arithmetic number, because the mean of its divisors is an integer number (27139440412440).

Almost surely, 2^{212001010012009} is an apocalyptic number.

It is an amenable number.

212001010012009 is a deficient number, since it is larger than the sum of its proper divisors (5114513287511).

212001010012009 is a wasteful number, since it uses less digits than its factorization.

212001010012009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29563660751.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 212001010012009 in words is "two hundred twelve trillion, one billion, ten million, twelve thousand, nine".