2131211122041 has 4 divisors (see below), whose sum is σ = 2841614829392. Its totient is φ = 1420807414692.

The previous prime is 2131211122031. The next prime is 2131211122049. The reversal of 2131211122041 is 1402211121312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2131211122041 - 2⁵ = 2131211122009 is a prime.

It is a super-2 number, since 2×2131211122041² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131211121999 and 2131211122017.

It is not an unprimeable number, because it can be changed into a prime (2131211122049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355201853671 + ... + 355201853676.

It is an arithmetic number, because the mean of its divisors is an integer number (710403707348).

Almost surely, 2^{2131211122041} is an apocalyptic number.

It is an amenable number.

2131211122041 is a deficient number, since it is larger than the sum of its proper divisors (710403707351).

2131211122041 is an equidigital number, since it uses as much as digits as its factorization.

2131211122041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710403707350.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 2131211122041 its reverse (1402211121312), we get a palindrome (3533422243353).

The spelling of 2131211122041 in words is "two trillion, one hundred thirty-one billion, two hundred eleven million, one hundred twenty-two thousand, forty-one".