211141223209 has 16 divisors (see below), whose sum is σ = 251832066048. Its totient is φ = 173084603472.

The previous prime is 211141223149. The next prime is 211141223219. The reversal of 211141223209 is 902322141112.

It is a cyclic number.

It is not a de Polignac number, because 211141223209 - 2¹⁵ = 211141190441 is a prime.

It is a super-2 number, since 2×211141223209² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211141223219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069344 + ... + 1251310.

It is an arithmetic number, because the mean of its divisors is an integer number (15739504128).

Almost surely, 2^211141223209 is an apocalyptic number.

It is an amenable number.

211141223209 is a deficient number, since it is larger than the sum of its proper divisors (40690842839).

211141223209 is a wasteful number, since it uses less digits than its factorization.

211141223209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189204.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 211141223209 in words is "two hundred eleven billion, one hundred forty-one million, two hundred twenty-three thousand, two hundred nine".