4412311212421 has 16 divisors (see below), whose sum is σ = 5080183632000. Its totient is φ = 3753861346368.

The previous prime is 4412311212371. The next prime is 4412311212431. The reversal of 4412311212421 is 1242121132144.

It is not a de Polignac number, because 4412311212421 - 2¹³ = 4412311204229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4412311212421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4412311212431) 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, 108531 + ... + 2972608.

It is an arithmetic number, because the mean of its divisors is an integer number (317511477000).

Almost surely, 2^{4412311212421} is an apocalyptic number.

It is an amenable number.

4412311212421 is a deficient number, since it is larger than the sum of its proper divisors (667872419579).

4412311212421 is a wasteful number, since it uses less digits than its factorization.

4412311212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082668.

The product of its digits is 3072, while the sum is 28.

Adding to 4412311212421 its reverse (1242121132144), we get a palindrome (5654432344565).

The spelling of 4412311212421 in words is "four trillion, four hundred twelve billion, three hundred eleven million, two hundred twelve thousand, four hundred twenty-one".