2001201002122 has 128 divisors (see below), whose sum is σ = 3653650022400. Its totient is φ = 821070169920.

The previous prime is 2001201002081. The next prime is 2001201002137. The reversal of 2001201002122 is 2212001021002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 627137547 + ... + 627140737.

It is an arithmetic number, because the mean of its divisors is an integer number (28544140800).

Almost surely, 2^{2001201002122} is an apocalyptic number.

2001201002122 is a deficient number, since it is larger than the sum of its proper divisors (1652449020278).

2001201002122 is a wasteful number, since it uses less digits than its factorization.

2001201002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001201002122 its reverse (2212001021002), we get a palindrome (4213202023124).

The spelling of 2001201002122 in words is "two trillion, one billion, two hundred one million, two thousand, one hundred twenty-two".