2009022985901 has 4 divisors (see below), whose sum is σ = 2026801950492. Its totient is φ = 1991244021312.

The previous prime is 2009022985897. The next prime is 2009022985913. The reversal of 2009022985901 is 1095892209002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 213157656100 + 1795865329801 = 461690^2 + 1340099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2009022985901 - 2² = 2009022985897 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 (2009022985961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8889482126 + ... + 8889482351.

It is an arithmetic number, because the mean of its divisors is an integer number (506700487623).

Almost surely, 2^{2009022985901} is an apocalyptic number.

It is an amenable number.

2009022985901 is a deficient number, since it is larger than the sum of its proper divisors (17778964591).

2009022985901 is a wasteful number, since it uses less digits than its factorization.

2009022985901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778964590.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 2009022985901 in words is "two trillion, nine billion, twenty-two million, nine hundred eighty-five thousand, nine hundred one".