989002212001 has 4 divisors (see below), whose sum is σ = 998075626900. Its totient is φ = 979928797104.

The previous prime is 989002211957. The next prime is 989002212013. The reversal of 989002212001 is 100212200989.

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 890992517776 + 98009694225 = 943924^2 + 313065^2 .

It is a cyclic number.

It is not a de Polignac number, because 989002212001 - 2⁹ = 989002211489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989002212101) 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, 4536707286 + ... + 4536707503.

It is an arithmetic number, because the mean of its divisors is an integer number (249518906725).

Almost surely, 2^989002212001 is an apocalyptic number.

It is an amenable number.

989002212001 is a deficient number, since it is larger than the sum of its proper divisors (9073414899).

989002212001 is a wasteful number, since it uses less digits than its factorization.

989002212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9073414898.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 989002212001 in words is "nine hundred eighty-nine billion, two million, two hundred twelve thousand, one".