211222311131223 has 48 divisors (see below), whose sum is σ = 348769618317120. Its totient is φ = 120668985971712.

The previous prime is 211222311131171. The next prime is 211222311131261. The reversal of 211222311131223 is 322131113222112.

211222311131223 is a `hidden beast` number, since 2 + 1 + 1 + 222 + 311 + 1 + 3 + 122 + 3 = 666.

It is not a de Polignac number, because 211222311131223 - 2⁹ = 211222311130711 is a prime.

It is a super-2 number, since 2×211222311131223² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222311131123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8717735673 + ... + 8717759901.

It is an arithmetic number, because the mean of its divisors is an integer number (7266033714940).

Almost surely, 2^{211222311131223} is an apocalyptic number.

211222311131223 is a deficient number, since it is larger than the sum of its proper divisors (137547307185897).

211222311131223 is a wasteful number, since it uses less digits than its factorization.

211222311131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52328 (or 52325 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 211222311131223 its reverse (322131113222112), we get a palindrome (533353424353335).

The spelling of 211222311131223 in words is "two hundred eleven trillion, two hundred twenty-two billion, three hundred eleven million, one hundred thirty-one thousand, two hundred twenty-three".