2001020211122 has 8 divisors (see below), whose sum is σ = 3001542843036. Its totient is φ = 1000505930112.

The previous prime is 2001020211109. The next prime is 2001020211149. The reversal of 2001020211122 is 2211120201002.

It can be written as a sum of positive squares in 2 ways, for example, as 1999653356281 + 1366854841 = 1414091^2 + 36971^2 .

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 = 2001020211097 and 2001020211106.

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, 1449683 + ... + 2470550.

Almost surely, 2^{2001020211122} is an apocalyptic number.

2001020211122 is a deficient number, since it is larger than the sum of its proper divisors (1000522631914).

2001020211122 is a wasteful number, since it uses less digits than its factorization.

2001020211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175452.

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

Adding to 2001020211122 its reverse (2211120201002), we get a palindrome (4212140412124).

The spelling of 2001020211122 in words is "two trillion, one billion, twenty million, two hundred eleven thousand, one hundred twenty-two".