2121033010111 has 16 divisors (see below), whose sum is σ = 2199110842368. Its totient is φ = 2043568245600.

The previous prime is 2121033010097. The next prime is 2121033010231. The reversal of 2121033010111 is 1110103301212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2121033010111 - 2³⁵ = 2086673271743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121033050111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13513021 + ... + 13669081.

It is an arithmetic number, because the mean of its divisors is an integer number (137444427648).

Almost surely, 2^{2121033010111} is an apocalyptic number.

2121033010111 is a deficient number, since it is larger than the sum of its proper divisors (78077832257).

2121033010111 is a wasteful number, since it uses less digits than its factorization.

2121033010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158022.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2121033010111 its reverse (1110103301212), we get a palindrome (3231136311323).

The spelling of 2121033010111 in words is "two trillion, one hundred twenty-one billion, thirty-three million, ten thousand, one hundred eleven".