8002121001 has 8 divisors (see below), whose sum is σ = 12193708224. Its totient is φ = 4572640560.

The previous prime is 8002120999. The next prime is 8002121033. The reversal of 8002121001 is 1001212008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8002121001 - 2¹ = 8002120999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8002121041) 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, 190526670 + ... + 190526711.

It is an arithmetic number, because the mean of its divisors is an integer number (1524213528).

Almost surely, 2^8002121001 is an apocalyptic number.

It is an amenable number.

8002121001 is a deficient number, since it is larger than the sum of its proper divisors (4191587223).

8002121001 is a wasteful number, since it uses less digits than its factorization.

8002121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381053391.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 8002121001 is about 89454.5750702556. The cubic root of 8002121001 is about 2000.1767344653.

Adding to 8002121001 its reverse (1001212008), we get a palindrome (9003333009).

The spelling of 8002121001 in words is "eight billion, two million, one hundred twenty-one thousand, one".