211101385077 has 24 divisors (see below), whose sum is σ = 332889231168. Its totient is φ = 127846147200.

The previous prime is 211101385073. The next prime is 211101385147. The reversal of 211101385077 is 770583101112.

211101385077 is a `hidden beast` number, since 2 + 1 + 1 + 10 + 138 + 507 + 7 = 666.

211101385077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211101385077 - 2² = 211101385073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211101385073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 648633 + ... + 918110.

It is an arithmetic number, because the mean of its divisors is an integer number (13870384632).

Almost surely, 2^211101385077 is an apocalyptic number.

It is an amenable number.

211101385077 is a deficient number, since it is larger than the sum of its proper divisors (121787846091).

211101385077 is a wasteful number, since it uses less digits than its factorization.

211101385077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568121 (or 1568118 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 36.

Adding to 211101385077 its reverse (770583101112), we get a palindrome (981684486189).

The spelling of 211101385077 in words is "two hundred eleven billion, one hundred one million, three hundred eighty-five thousand, seventy-seven".