211220043230 has 32 divisors (see below), whose sum is σ = 434526253056. Its totient is φ = 72415558944.

The previous prime is 211220043187. The next prime is 211220043241. The reversal of 211220043230 is 32340022112.

It is a super-2 number, since 2×211220043230² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

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, 2866307 + ... + 2939073.

It is an arithmetic number, because the mean of its divisors is an integer number (13578945408).

Almost surely, 2^211220043230 is an apocalyptic number.

211220043230 is an abundant number, since it is smaller than the sum of its proper divisors (223306209826).

211220043230 is a wasteful number, since it uses less digits than its factorization.

211220043230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114248.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 211220043230 its reverse (32340022112), we get a palindrome (243560065342).

The spelling of 211220043230 in words is "two hundred eleven billion, two hundred twenty million, forty-three thousand, two hundred thirty".