43220312120 has 32 divisors (see below), whose sum is σ = 97291400400. Its totient is φ = 17280000768.

The previous prime is 43220312119. The next prime is 43220312159. The reversal of 43220312120 is 2121302234.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 43220312092 and 43220312101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167330 + ... + 338289.

Almost surely, 2^43220312120 is an apocalyptic number.

43220312120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43220312120 is an abundant number, since it is smaller than the sum of its proper divisors (54071088280).

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

43220312120 is a wasteful number, since it uses less digits than its factorization.

43220312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507767 (or 507763 counting only the distinct ones).

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

Adding to 43220312120 its reverse (2121302234), we get a palindrome (45341614354).

The spelling of 43220312120 in words is "forty-three billion, two hundred twenty million, three hundred twelve thousand, one hundred twenty".