43030211220 has 72 divisors (see below), whose sum is σ = 131722510920. Its totient is φ = 11369445120.

The previous prime is 43030211219. The next prime is 43030211251. The reversal of 43030211220 is 2211203034.

43030211220 is a `hidden beast` number, since 430 + 3 + 0 + 2 + 11 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12373002756 + 30657208464 = 111234^2 + 175092^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 43030211193 and 43030211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1076971 + ... + 1116210.

Almost surely, 2^43030211220 is an apocalyptic number.

It is an amenable number.

43030211220 is an abundant number, since it is smaller than the sum of its proper divisors (88692299700).

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

43030211220 is a wasteful number, since it uses less digits than its factorization.

43030211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193305 (or 2193300 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 43030211220 its reverse (2211203034), we get a palindrome (45241414254).

The spelling of 43030211220 in words is "forty-three billion, thirty million, two hundred eleven thousand, two hundred twenty".