201001020221209 has 24 divisors (see below), whose sum is σ = 230070331241408. Its totient is φ = 174529943205120.

The previous prime is 201001020221179. The next prime is 201001020221231. The reversal of 201001020221209 is 902122020100102.

It is not a de Polignac number, because 201001020221209 - 2⁷ = 201001020221081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201001020221209.

It is not an unprimeable number, because it can be changed into a prime (201001020221279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7730547 + ... + 21488680.

Almost surely, 2^{201001020221209} is an apocalyptic number.

It is an amenable number.

201001020221209 is a deficient number, since it is larger than the sum of its proper divisors (29069311020199).

201001020221209 is a wasteful number, since it uses less digits than its factorization.

201001020221209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29221105 (or 29221088 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 201001020221209 in words is "two hundred one trillion, one billion, twenty million, two hundred twenty-one thousand, two hundred nine".