211231011222292 has 6 divisors (see below), whose sum is σ = 369654269639018. Its totient is φ = 105615505611144.

The previous prime is 211231011222281. The next prime is 211231011222293. The reversal of 211231011222292 is 292222110132112.

It can be written as a sum of positive squares in only one way, i.e., 133156044534276 + 78074966688016 = 11539326^2 + 8836004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231011222293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26403876402783 + ... + 26403876402790.

Almost surely, 2^{211231011222292} is an apocalyptic number.

It is an amenable number.

211231011222292 is a deficient number, since it is larger than the sum of its proper divisors (158423258416726).

211231011222292 is a wasteful number, since it uses less digits than its factorization.

211231011222292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52807752805577 (or 52807752805575 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 211231011222292 in words is "two hundred eleven trillion, two hundred thirty-one billion, eleven million, two hundred twenty-two thousand, two hundred ninety-two".