211001221230 has 32 divisors (see below), whose sum is σ = 506487665664. Its totient is φ = 56257577376.

The previous prime is 211001221229. The next prime is 211001221247. The reversal of 211001221230 is 32122100112.

211001221230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405222 + ... + 765641.

It is an arithmetic number, because the mean of its divisors is an integer number (15827739552).

Almost surely, 2^211001221230 is an apocalyptic number.

211001221230 is an abundant number, since it is smaller than the sum of its proper divisors (295486444434).

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

211001221230 is a wasteful number, since it uses less digits than its factorization.

211001221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176880.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 211001221230 its reverse (32122100112), we get a palindrome (243123321342).

The spelling of 211001221230 in words is "two hundred eleven billion, one million, two hundred twenty-one thousand, two hundred thirty".