212222222040431 has 4 divisors (see below), whose sum is σ = 212813370291600. Its totient is φ = 211631073789264.

The previous prime is 212222222040407. The next prime is 212222222040449. The reversal of 212222222040431 is 134040222222212.

212222222040431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212222222040431 - 2²² = 212222217846127 is a prime.

It is a super-2 number, since 2×212222222040431² (a number of 29 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 = 212222222040394 and 212222222040403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222222040481) 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, 295574125046 + ... + 295574125763.

It is an arithmetic number, because the mean of its divisors is an integer number (53203342572900).

Almost surely, 2^{212222222040431} is an apocalyptic number.

212222222040431 is a deficient number, since it is larger than the sum of its proper divisors (591148251169).

212222222040431 is an equidigital number, since it uses as much as digits as its factorization.

212222222040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591148251168.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 212222222040431 its reverse (134040222222212), we get a palindrome (346262444262643).

The spelling of 212222222040431 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twenty-two million, forty thousand, four hundred thirty-one".