211021121320312 has 16 divisors (see below), whose sum is σ = 397169030625840. Its totient is φ = 105109379820096.

The previous prime is 211021121320309. The next prime is 211021121320333. The reversal of 211021121320312 is 213023121120112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50147602773 + ... + 50147606980.

It is an arithmetic number, because the mean of its divisors is an integer number (24823064414115).

Almost surely, 2^{211021121320312} is an apocalyptic number.

It is an amenable number.

211021121320312 is a deficient number, since it is larger than the sum of its proper divisors (186147909305528).

211021121320312 is a wasteful number, since it uses less digits than its factorization.

211021121320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100295210022 (or 100295210018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 211021121320312 its reverse (213023121120112), we get a palindrome (424044242440424).

The spelling of 211021121320312 in words is "two hundred eleven trillion, twenty-one billion, one hundred twenty-one million, three hundred twenty thousand, three hundred twelve".