43212221002122 has 32 divisors (see below), whose sum is σ = 91525707248832. Its totient is φ = 13554186395904.

The previous prime is 43212221002079. The next prime is 43212221002123. The reversal of 43212221002122 is 22120012221234.

It is a junction number, because it is equal to n+sod(n) for n = 43212221002092 and 43212221002101.

It is not an unprimeable number, because it can be changed into a prime (43212221002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39913528 + ... + 40981875.

It is an arithmetic number, because the mean of its divisors is an integer number (2860178351526).

Almost surely, 2^{43212221002122} is an apocalyptic number.

43212221002122 is an abundant number, since it is smaller than the sum of its proper divisors (48313486246710).

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

43212221002122 is a wasteful number, since it uses less digits than its factorization.

43212221002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80900662.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 43212221002122 its reverse (22120012221234), we get a palindrome (65332233223356).

The spelling of 43212221002122 in words is "forty-three trillion, two hundred twelve billion, two hundred twenty-one million, two thousand, one hundred twenty-two".