2001022002002 has 4 divisors (see below), whose sum is σ = 3001533003006. Its totient is φ = 1000511001000.

The previous prime is 2001022001893. The next prime is 2001022002043. The reversal of 2001022002002 is 2002002201002.

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

It can be written as a sum of positive squares in only one way, i.e., 1848922782001 + 152099220001 = 1359751^2 + 389999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500255500499 + ... + 500255500502.

Almost surely, 2^{2001022002002} is an apocalyptic number.

2001022002002 is a deficient number, since it is larger than the sum of its proper divisors (1000511001004).

2001022002002 is a wasteful number, since it uses less digits than its factorization.

2001022002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000511001003.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 2001022002002 its reverse (2002002201002), we get a palindrome (4003024203004).

The spelling of 2001022002002 in words is "two trillion, one billion, twenty-two million, two thousand, two".