211222232031 has 8 divisors (see below), whose sum is σ = 282892556800. Its totient is φ = 140183364312.

The previous prime is 211222232003. The next prime is 211222232057. The reversal of 211222232031 is 130232222112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211222232031 - 2⁵ = 211222231999 is a prime.

It is a super-2 number, since 2×211222232031² (a number of 23 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 = 211222231989 and 211222232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222232831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157863481 + ... + 157864818.

It is an arithmetic number, because the mean of its divisors is an integer number (35361569600).

Almost surely, 2^211222232031 is an apocalyptic number.

211222232031 is a deficient number, since it is larger than the sum of its proper divisors (71670324769).

211222232031 is a wasteful number, since it uses less digits than its factorization.

211222232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315728525.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 211222232031 its reverse (130232222112), we get a palindrome (341454454143).

The spelling of 211222232031 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred thirty-two thousand, thirty-one".