2002001100122 has 4 divisors (see below), whose sum is σ = 3003001650186. Its totient is φ = 1001000550060.

The previous prime is 2002001100091. The next prime is 2002001100131. The reversal of 2002001100122 is 2210011002002.

It is a happy number.

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., 1806768793921 + 195232306201 = 1344161^2 + 441851^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500500275029 + ... + 500500275032.

Almost surely, 2^{2002001100122} is an apocalyptic number.

2002001100122 is a deficient number, since it is larger than the sum of its proper divisors (1001000550064).

2002001100122 is a wasteful number, since it uses less digits than its factorization.

2002001100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001000550063.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2002001100122 its reverse (2210011002002), we get a palindrome (4212012102124).

The spelling of 2002001100122 in words is "two trillion, two billion, one million, one hundred thousand, one hundred twenty-two".