212261088 has 48 divisors (see below), whose sum is σ = 600049296. Its totient is φ = 65310720.

The previous prime is 212261083. The next prime is 212261111. The reversal of 212261088 is 880162212.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212261083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83793 + ... + 86288.

It is an arithmetic number, because the mean of its divisors is an integer number (12501027).

Almost surely, 2^212261088 is an apocalyptic number.

It is an amenable number.

212261088 is an abundant number, since it is smaller than the sum of its proper divisors (387788208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212261088 is a wasteful number, since it uses less digits than its factorization.

212261088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170107 (or 170099 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 212261088 is about 14569.1828185386. The cubic root of 212261088 is about 596.5178748795.

The spelling of 212261088 in words is "two hundred twelve million, two hundred sixty-one thousand, eighty-eight".