2121312133011 has 8 divisors (see below), whose sum is σ = 2839684768704. Its totient is φ = 1408573793000.

The previous prime is 2121312133007. The next prime is 2121312133037. The reversal of 2121312133011 is 1103312131212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121312133011 - 2² = 2121312133007 is a prime.

It is a super-2 number, since 2×2121312133011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121312133001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1408573041 + ... + 1408574546.

It is an arithmetic number, because the mean of its divisors is an integer number (354960596088).

Almost surely, 2^{2121312133011} is an apocalyptic number.

2121312133011 is a deficient number, since it is larger than the sum of its proper divisors (718372635693).

2121312133011 is a wasteful number, since it uses less digits than its factorization.

2121312133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817147841.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2121312133011 its reverse (1103312131212), we get a palindrome (3224624264223).

The spelling of 2121312133011 in words is "two trillion, one hundred twenty-one billion, three hundred twelve million, one hundred thirty-three thousand, eleven".