221212013134303 has 16 divisors (see below), whose sum is σ = 230043384885600. Its totient is φ = 212463810195840.

The previous prime is 221212013134247. The next prime is 221212013134319. The reversal of 221212013134303 is 303431310212122.

It is a cyclic number.

It is not a de Polignac number, because 221212013134303 - 2²⁹ = 221211476263391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221212013144303) 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, 22078053 + ... + 30493678.

It is an arithmetic number, because the mean of its divisors is an integer number (14377711555350).

Almost surely, 2^{221212013134303} is an apocalyptic number.

221212013134303 is a deficient number, since it is larger than the sum of its proper divisors (8831371751297).

221212013134303 is a wasteful number, since it uses less digits than its factorization.

221212013134303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52572522.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 221212013134303 its reverse (303431310212122), we get a palindrome (524643323346425).

The spelling of 221212013134303 in words is "two hundred twenty-one trillion, two hundred twelve billion, thirteen million, one hundred thirty-four thousand, three hundred three".