211302031231122 has 64 divisors (see below), whose sum is σ = 461909434291200. Its totient is φ = 64044976716864.

The previous prime is 211302031231043. The next prime is 211302031231171. The reversal of 211302031231122 is 221132130203112.

It is a junction number, because it is equal to n+sod(n) for n = 211302031231092 and 211302031231101.

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 31 ways as a sum of consecutive naturals, for example, 899794573 + ... + 900029375.

It is an arithmetic number, because the mean of its divisors is an integer number (7217334910800).

Almost surely, 2^{211302031231122} is an apocalyptic number.

211302031231122 is an abundant number, since it is smaller than the sum of its proper divisors (250607403060078).

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

211302031231122 is a wasteful number, since it uses less digits than its factorization.

211302031231122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407087.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211302031231122 its reverse (221132130203112), we get a palindrome (432434161434234).

The spelling of 211302031231122 in words is "two hundred eleven trillion, three hundred two billion, thirty-one million, two hundred thirty-one thousand, one hundred twenty-two".