211120122221012 has 12 divisors (see below), whose sum is σ = 373118235807156. Its totient is φ = 104514911990400.

The previous prime is 211120122221009. The next prime is 211120122221119. The reversal of 211120122221012 is 210122221021112.

It can be written as a sum of positive squares in 2 ways, for example, as 203520639116356 + 7599483104656 = 14266066^2 + 2756716^2 .

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, 261287279573 + ... + 261287280380.

It is an arithmetic number, because the mean of its divisors is an integer number (31093186317263).

Almost surely, 2^{211120122221012} is an apocalyptic number.

It is an amenable number.

211120122221012 is a deficient number, since it is larger than the sum of its proper divisors (161998113586144).

211120122221012 is a wasteful number, since it uses less digits than its factorization.

211120122221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522574560058 (or 522574560056 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211120122221012 its reverse (210122221021112), we get a palindrome (421242343242124).

The spelling of 211120122221012 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, twelve".