221010212132 has 24 divisors (see below), whose sum is σ = 407143292640. Its totient is φ = 104684106240.

The previous prime is 221010212131. The next prime is 221010212147. The reversal of 221010212132 is 231212010122.

221010212132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221010212132.

It is not an unprimeable number, because it can be changed into a prime (221010212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1933907 + ... + 2044997.

It is an arithmetic number, because the mean of its divisors is an integer number (16964303860).

Almost surely, 2^221010212132 is an apocalyptic number.

It is an amenable number.

221010212132 is a deficient number, since it is larger than the sum of its proper divisors (186133080508).

221010212132 is a wasteful number, since it uses less digits than its factorization.

221010212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137291 (or 137289 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221010212132 its reverse (231212010122), we get a palindrome (452222222254).

The spelling of 221010212132 in words is "two hundred twenty-one billion, ten million, two hundred twelve thousand, one hundred thirty-two".