211142041422 has 32 divisors (see below), whose sum is σ = 454896570240. Its totient is φ = 64948339680.

The previous prime is 211142041391. The next prime is 211142041477. The reversal of 211142041422 is 224140241112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211142041392 and 211142041401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106404 + ... + 658487.

It is an arithmetic number, because the mean of its divisors is an integer number (14215517820).

Almost surely, 2^211142041422 is an apocalyptic number.

211142041422 is an abundant number, since it is smaller than the sum of its proper divisors (243754528818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211142041422 is a wasteful number, since it uses less digits than its factorization.

211142041422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768448.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211142041422 its reverse (224140241112), we get a palindrome (435282282534).

The spelling of 211142041422 in words is "two hundred eleven billion, one hundred forty-two million, forty-one thousand, four hundred twenty-two".