211550102056 has 16 divisors (see below), whose sum is σ = 396741068640. Its totient is φ = 105752483760.

The previous prime is 211550102053. The next prime is 211550102059. The reversal of 211550102056 is 650201055112.

It is an interprime number because it is at equal distance from previous prime (211550102053) and next prime (211550102059).

It is not an unprimeable number, because it can be changed into a prime (211550102051) 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, 2781036 + ... + 2856091.

It is an arithmetic number, because the mean of its divisors is an integer number (24796316790).

Almost surely, 2^211550102056 is an apocalyptic number.

It is an amenable number.

211550102056 is a deficient number, since it is larger than the sum of its proper divisors (185190966584).

211550102056 is a wasteful number, since it uses less digits than its factorization.

211550102056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641824 (or 5641820 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 211550102056 its reverse (650201055112), we get a palindrome (861751157168).

The spelling of 211550102056 in words is "two hundred eleven billion, five hundred fifty million, one hundred two thousand, fifty-six".