2121133300231 has 32 divisors (see below), whose sum is σ = 2449615795200. Its totient is φ = 1816437934080.

The previous prime is 2121133300229. The next prime is 2121133300277. The reversal of 2121133300231 is 1320033311212.

It is not a de Polignac number, because 2121133300231 - 2¹ = 2121133300229 is a prime.

It is a super-2 number, since 2×2121133300231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121133300201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33585475 + ... + 33648571.

It is an arithmetic number, because the mean of its divisors is an integer number (76550493600).

Almost surely, 2^{2121133300231} is an apocalyptic number.

2121133300231 is a deficient number, since it is larger than the sum of its proper divisors (328482494969).

2121133300231 is a wasteful number, since it uses less digits than its factorization.

2121133300231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64039.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121133300231 its reverse (1320033311212), we get a palindrome (3441166611443).

The spelling of 2121133300231 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-three million, three hundred thousand, two hundred thirty-one".