43421404412212 has 24 divisors (see below), whose sum is σ = 76454268329376. Its totient is φ = 21577329942048.

The previous prime is 43421404412209. The next prime is 43421404412261. The reversal of 43421404412212 is 21221440412434.

It is a super-2 number, since 2×43421404412212² (a number of 28 digits) contains 22 as substring.

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, 117993243 + ... + 118360669.

It is an arithmetic number, because the mean of its divisors is an integer number (3185594513724).

Almost surely, 2^{43421404412212} is an apocalyptic number.

It is an amenable number.

43421404412212 is a deficient number, since it is larger than the sum of its proper divisors (33032863917164).

43421404412212 is a wasteful number, since it uses less digits than its factorization.

43421404412212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548847 (or 548845 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 43421404412212 its reverse (21221440412434), we get a palindrome (64642844824646).

The spelling of 43421404412212 in words is "forty-three trillion, four hundred twenty-one billion, four hundred four million, four hundred twelve thousand, two hundred twelve".