43210214421 has 16 divisors (see below), whose sum is σ = 64549904448. Its totient is φ = 25480224000.

The previous prime is 43210214417. The next prime is 43210214449. The reversal of 43210214421 is 12441201234.

It is not a de Polignac number, because 43210214421 - 2² = 43210214417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43210214391 and 43210214400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43210214461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17693380 + ... + 17695821.

It is an arithmetic number, because the mean of its divisors is an integer number (4034369028).

Almost surely, 2^43210214421 is an apocalyptic number.

It is an amenable number.

43210214421 is a deficient number, since it is larger than the sum of its proper divisors (21339690027).

43210214421 is a wasteful number, since it uses less digits than its factorization.

43210214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35389252.

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

Adding to 43210214421 its reverse (12441201234), we get a palindrome (55651415655).

The spelling of 43210214421 in words is "forty-three billion, two hundred ten million, two hundred fourteen thousand, four hundred twenty-one".