2211001009 has 8 divisors (see below), whose sum is σ = 2541990528. Its totient is φ = 1883794560.

The previous prime is 2211001007. The next prime is 2211001031. The reversal of 2211001009 is 9001001122.

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 2211001009 - 2¹ = 2211001007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211000983 and 2211001001.

It is not an unprimeable number, because it can be changed into a prime (2211001007) 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, 944512 + ... + 946849.

It is an arithmetic number, because the mean of its divisors is an integer number (317748816).

Almost surely, 2^2211001009 is an apocalyptic number.

It is an amenable number.

2211001009 is a deficient number, since it is larger than the sum of its proper divisors (330989519).

2211001009 is a wasteful number, since it uses less digits than its factorization.

2211001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891535.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 2211001009 is about 47021.2825112204. The cubic root of 2211001009 is about 1302.7556946837.

The spelling of 2211001009 in words is "two billion, two hundred eleven million, one thousand, nine".