211568082 has 32 divisors (see below), whose sum is σ = 462404160. Its totient is φ = 64000320.

The previous prime is 211568047. The next prime is 211568107. The reversal of 211568082 is 280865112.

It is a super-2 number, since 2×211568082² = 89522106642317448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40644 + ... + 45552.

It is an arithmetic number, because the mean of its divisors is an integer number (14450130).

Almost surely, 2^211568082 is an apocalyptic number.

211568082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211568082 is an abundant number, since it is smaller than the sum of its proper divisors (250836078).

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

211568082 is a wasteful number, since it uses less digits than its factorization.

211568082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 211568082 is about 14545.3800912867. The cubic root of 211568082 is about 595.8679815844.

The spelling of 211568082 in words is "two hundred eleven million, five hundred sixty-eight thousand, eighty-two".