211152011 has 4 divisors (see below), whose sum is σ = 241316592. Its totient is φ = 180987432.

The previous prime is 211151977. The next prime is 211152023. The reversal of 211152011 is 110251112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211152011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211152211) 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, 15082280 + ... + 15082293.

It is an arithmetic number, because the mean of its divisors is an integer number (60329148).

Almost surely, 2^211152011 is an apocalyptic number.

211152011 is a deficient number, since it is larger than the sum of its proper divisors (30164581).

211152011 is an equidigital number, since it uses as much as digits as its factorization.

211152011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30164580.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 211152011 is about 14531.0705386768. The cubic root of 211152011 is about 595.4771127840.

The spelling of 211152011 in words is "two hundred eleven million, one hundred fifty-two thousand, eleven".