221332121012013 has 32 divisors (see below), whose sum is σ = 322164241920000. Its totient is φ = 134046276268800.

The previous prime is 221332121012011. The next prime is 221332121012083. The reversal of 221332121012013 is 310210121233122.

It is not a de Polignac number, because 221332121012013 - 2¹ = 221332121012011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332121012011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495913828 + ... + 496359938.

It is an arithmetic number, because the mean of its divisors is an integer number (10067632560000).

Almost surely, 2^{221332121012013} is an apocalyptic number.

It is an amenable number.

221332121012013 is a deficient number, since it is larger than the sum of its proper divisors (100832120907987).

221332121012013 is a wasteful number, since it uses less digits than its factorization.

221332121012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456673.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 221332121012013 its reverse (310210121233122), we get a palindrome (531542242245135).

The spelling of 221332121012013 in words is "two hundred twenty-one trillion, three hundred thirty-two billion, one hundred twenty-one million, twelve thousand, thirteen".