2121021233301 has 16 divisors (see below), whose sum is σ = 2843475148800. Its totient is φ = 1406294072880.

The previous prime is 2121021233297. The next prime is 2121021233369. The reversal of 2121021233301 is 1033321201212.

It is not a de Polignac number, because 2121021233301 - 2² = 2121021233297 is a prime.

It is a super-2 number, since 2×2121021233301² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121021233501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142600 + ... + 2971998.

It is an arithmetic number, because the mean of its divisors is an integer number (177717196800).

Almost surely, 2^{2121021233301} is an apocalyptic number.

It is an amenable number.

2121021233301 is a deficient number, since it is larger than the sum of its proper divisors (722453915499).

2121021233301 is a wasteful number, since it uses less digits than its factorization.

2121021233301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834056.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2121021233301 its reverse (1033321201212), we get a palindrome (3154342434513).

The spelling of 2121021233301 in words is "two trillion, one hundred twenty-one billion, twenty-one million, two hundred thirty-three thousand, three hundred one".