89021002001 has 2 divisors, whose sum is σ = 89021002002. Its totient is φ = 89021002000.

The previous prime is 89021001989. The next prime is 89021002051. The reversal of 89021002001 is 10020012098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87154848400 + 1866153601 = 295220^2 + 43199^2 .

It is a cyclic number.

It is not a de Polignac number, because 89021002001 - 2¹⁰ = 89021000977 is a prime.

It is not a weakly prime, because it can be changed into another prime (89021002051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44510501000 + 44510501001.

It is an arithmetic number, because the mean of its divisors is an integer number (44510501001).

Almost surely, 2^89021002001 is an apocalyptic number.

It is an amenable number.

89021002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

89021002001 is an equidigital number, since it uses as much as digits as its factorization.

89021002001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 89021002001 its reverse (10020012098), we get a palindrome (99041014099).

The spelling of 89021002001 in words is "eighty-nine billion, twenty-one million, two thousand, one".