211185950147 has 4 divisors (see below), whose sum is σ = 218468224320. Its totient is φ = 203903675976.

The previous prime is 211185950137. The next prime is 211185950197. The reversal of 211185950147 is 741059581112.

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

It is a cyclic number.

It is not a de Polignac number, because 211185950147 - 2¹⁰ = 211185949123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211185950098 and 211185950107.

It is not an unprimeable number, because it can be changed into a prime (211185950117) 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, 3641137043 + ... + 3641137100.

It is an arithmetic number, because the mean of its divisors is an integer number (54617056080).

Almost surely, 2^211185950147 is an apocalyptic number.

211185950147 is a deficient number, since it is larger than the sum of its proper divisors (7282274173).

211185950147 is an equidigital number, since it uses as much as digits as its factorization.

211185950147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7282274172.

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 211185950147 in words is "two hundred eleven billion, one hundred eighty-five million, nine hundred fifty thousand, one hundred forty-seven".