211264334121016 has 16 divisors (see below), whose sum is σ = 432131592520440. Its totient is φ = 96029242782240.

The previous prime is 211264334120963. The next prime is 211264334121017. The reversal of 211264334121016 is 610121433462112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211264334121017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200365534691 + ... + 1200365534866.

Almost surely, 2^{211264334121016} is an apocalyptic number.

It is an amenable number.

211264334121016 is an abundant number, since it is smaller than the sum of its proper divisors (220867258399424).

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

211264334121016 is a wasteful number, since it uses less digits than its factorization.

211264334121016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400731069574 (or 2400731069570 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 211264334121016 its reverse (610121433462112), we get a palindrome (821385767583128).

The spelling of 211264334121016 in words is "two hundred eleven trillion, two hundred sixty-four billion, three hundred thirty-four million, one hundred twenty-one thousand, sixteen".