2001211110122 has 8 divisors (see below), whose sum is σ = 3430647617376. Its totient is φ = 857661904332.

The previous prime is 2001211110091. The next prime is 2001211110209. The reversal of 2001211110122 is 2210111121002.

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

It is a super-2 number, since 2×2001211110122² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 142943650723 = 2001211110122 / (2 + 0 + 0 + 1 + 2 + 1 + 1 + 1 + 1 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2001211110097 and 2001211110106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71471825348 + ... + 71471825375.

It is an arithmetic number, because the mean of its divisors is an integer number (428830952172).

Almost surely, 2^{2001211110122} is an apocalyptic number.

2001211110122 is a deficient number, since it is larger than the sum of its proper divisors (1429436507254).

2001211110122 is a wasteful number, since it uses less digits than its factorization.

2001211110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142943650732.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2001211110122 its reverse (2210111121002), we get a palindrome (4211322231124).

The spelling of 2001211110122 in words is "two trillion, one billion, two hundred eleven million, one hundred ten thousand, one hundred twenty-two".