2001012120122 has 8 divisors (see below), whose sum is σ = 3001541208672. Its totient is φ = 1000498383900.

The previous prime is 2001012120071. The next prime is 2001012120157. The reversal of 2001012120122 is 2210212101002.

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

It is a junction number, because it is equal to n+sod(n) for n = 2001012120097 and 2001012120106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506504 + ... + 4037027.

It is an arithmetic number, because the mean of its divisors is an integer number (375192651084).

Almost surely, 2^{2001012120122} is an apocalyptic number.

2001012120122 is a deficient number, since it is larger than the sum of its proper divisors (1000529088550).

2001012120122 is a wasteful number, since it uses less digits than its factorization.

2001012120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676164.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001012120122 its reverse (2210212101002), we get a palindrome (4211224221124).

The spelling of 2001012120122 in words is "two trillion, one billion, twelve million, one hundred twenty thousand, one hundred twenty-two".