212020132209 has 16 divisors (see below), whose sum is σ = 288046072512. Its totient is φ = 138670820288.

The previous prime is 212020132201. The next prime is 212020132243. The reversal of 212020132209 is 902231020212.

It is a cyclic number.

It is not a de Polignac number, because 212020132209 - 2³ = 212020132201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212020132201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3146182 + ... + 3212864.

It is an arithmetic number, because the mean of its divisors is an integer number (18002879532).

Almost surely, 2^212020132209 is an apocalyptic number.

It is an amenable number.

212020132209 is a deficient number, since it is larger than the sum of its proper divisors (76025940303).

212020132209 is a wasteful number, since it uses less digits than its factorization.

212020132209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86736.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 212020132209 in words is "two hundred twelve billion, twenty million, one hundred thirty-two thousand, two hundred nine".