221012003132 has 6 divisors (see below), whose sum is σ = 386771005488. Its totient is φ = 110506001564.

The previous prime is 221012003117. The next prime is 221012003141. The reversal of 221012003132 is 231300210122.

It is a self number, because there is not a number n which added to its sum of digits gives 221012003132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27626500388 + ... + 27626500395.

It is an arithmetic number, because the mean of its divisors is an integer number (64461834248).

Almost surely, 2^221012003132 is an apocalyptic number.

It is an amenable number.

221012003132 is a deficient number, since it is larger than the sum of its proper divisors (165759002356).

221012003132 is a wasteful number, since it uses less digits than its factorization.

221012003132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55253000787 (or 55253000785 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221012003132 its reverse (231300210122), we get a palindrome (452312213254).

The spelling of 221012003132 in words is "two hundred twenty-one billion, twelve million, three thousand, one hundred thirty-two".