212013202109 has 8 divisors (see below), whose sum is σ = 214356709632. Its totient is φ = 209675178000.

The previous prime is 212013202103. The next prime is 212013202111. The reversal of 212013202109 is 901202310212.

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 212013202109 - 2⁸ = 212013201853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293074 + ... + 1447779.

It is an arithmetic number, because the mean of its divisors is an integer number (26794588704).

Almost surely, 2^212013202109 is an apocalyptic number.

It is an amenable number.

212013202109 is a deficient number, since it is larger than the sum of its proper divisors (2343507523).

212013202109 is a wasteful number, since it uses less digits than its factorization.

212013202109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741707.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 212013202109 in words is "two hundred twelve billion, thirteen million, two hundred two thousand, one hundred nine".