211211422041 has 4 divisors (see below), whose sum is σ = 281615229392. Its totient is φ = 140807614692.

The previous prime is 211211422013. The next prime is 211211422043. The reversal of 211211422041 is 140224112112.

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 211211422041 - 2¹⁰ = 211211421017 is a prime.

It is a super-2 number, since 2×211211422041² (a number of 23 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 = 211211421999 and 211211422017.

It is not an unprimeable number, because it can be changed into a prime (211211422043) 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, 35201903671 + ... + 35201903676.

It is an arithmetic number, because the mean of its divisors is an integer number (70403807348).

Almost surely, 2^211211422041 is an apocalyptic number.

It is an amenable number.

211211422041 is a deficient number, since it is larger than the sum of its proper divisors (70403807351).

211211422041 is an equidigital number, since it uses as much as digits as its factorization.

211211422041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70403807350.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211211422041 its reverse (140224112112), we get a palindrome (351435534153).

The spelling of 211211422041 in words is "two hundred eleven billion, two hundred eleven million, four hundred twenty-two thousand, forty-one".