212775101 has 12 divisors (see below), whose sum is σ = 270015840. Its totient is φ = 165798360.

The previous prime is 212775083. The next prime is 212775107. The reversal of 212775101 is 101577212.

It is not a de Polignac number, because 212775101 - 2¹⁰ = 212774077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212775107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196841 + ... + 197918.

It is an arithmetic number, because the mean of its divisors is an integer number (22501320).

Almost surely, 2^212775101 is an apocalyptic number.

It is an amenable number.

212775101 is a deficient number, since it is larger than the sum of its proper divisors (57240739).

212775101 is a wasteful number, since it uses less digits than its factorization.

212775101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394784 (or 394777 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 212775101 is about 14586.8125716347. The cubic root of 212775101 is about 596.9989974049.

The spelling of 212775101 in words is "two hundred twelve million, seven hundred seventy-five thousand, one hundred one".