211011122111012 has 24 divisors (see below), whose sum is σ = 370173256712952. Its totient is φ = 105247370592000.

The previous prime is 211011122111003. The next prime is 211011122111077. The reversal of 211011122111012 is 210111221110112.

It can be written as a sum of positive squares in 4 ways, for example, as 48460198904896 + 162550923206116 = 6961336^2 + 12749546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18902288 + ... + 27916280.

It is an arithmetic number, because the mean of its divisors is an integer number (15423885696373).

Almost surely, 2^{211011122111012} is an apocalyptic number.

It is an amenable number.

211011122111012 is a deficient number, since it is larger than the sum of its proper divisors (159162134601940).

211011122111012 is a wasteful number, since it uses less digits than its factorization.

211011122111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028319 (or 9028317 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 211011122111012 its reverse (210111221110112), we get a palindrome (421122343221124).

The spelling of 211011122111012 in words is "two hundred eleven trillion, eleven billion, one hundred twenty-two million, one hundred eleven thousand, twelve".