221412332134311 has 4 divisors (see below), whose sum is σ = 295216442845752. Its totient is φ = 147608221422872.

The previous prime is 221412332134271. The next prime is 221412332134321. The reversal of 221412332134311 is 113431233214122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221412332134311 - 2¹⁰ = 221412332133287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221412332134321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36902055355716 + ... + 36902055355721.

It is an arithmetic number, because the mean of its divisors is an integer number (73804110711438).

Almost surely, 2^{221412332134311} is an apocalyptic number.

221412332134311 is a deficient number, since it is larger than the sum of its proper divisors (73804110711441).

221412332134311 is an equidigital number, since it uses as much as digits as its factorization.

221412332134311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73804110711440.

The product of its digits is 20736, while the sum is 33.

Adding to 221412332134311 its reverse (113431233214122), we get a palindrome (334843565348433).

The spelling of 221412332134311 in words is "two hundred twenty-one trillion, four hundred twelve billion, three hundred thirty-two million, one hundred thirty-four thousand, three hundred eleven".