221332013012 has 24 divisors (see below), whose sum is σ = 425870054400. Its totient is φ = 99813288960.

The previous prime is 221332013011. The next prime is 221332013017. The reversal of 221332013012 is 210310233122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332013011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19798637 + ... + 19809812.

It is an arithmetic number, because the mean of its divisors is an integer number (17744585600).

Almost surely, 2^221332013012 is an apocalyptic number.

221332013012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221332013012 is a deficient number, since it is larger than the sum of its proper divisors (204538041388).

221332013012 is a wasteful number, since it uses less digits than its factorization.

221332013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39608591 (or 39608589 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 221332013012 its reverse (210310233122), we get a palindrome (431642246134).

The spelling of 221332013012 in words is "two hundred twenty-one billion, three hundred thirty-two million, thirteen thousand, twelve".