211431400022 has 16 divisors (see below), whose sum is σ = 323909910720. Its totient is φ = 103461638208.

The previous prime is 211431400013. The next prime is 211431400073. The reversal of 211431400022 is 220004134112.

It is a junction number, because it is equal to n+sod(n) for n = 211431399967 and 211431400003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2835554 + ... + 2909162.

It is an arithmetic number, because the mean of its divisors is an integer number (20244369420).

Almost surely, 2^211431400022 is an apocalyptic number.

211431400022 is a deficient number, since it is larger than the sum of its proper divisors (112478510698).

211431400022 is a wasteful number, since it uses less digits than its factorization.

211431400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104215.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211431400022 its reverse (220004134112), we get a palindrome (431435534134).

The spelling of 211431400022 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred thousand, twenty-two".