221301132212 has 24 divisors (see below), whose sum is σ = 389882754240. Its totient is φ = 109906214400.

The previous prime is 221301132179. The next prime is 221301132223. The reversal of 221301132212 is 212231103122.

221301132212 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221301132212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 10249364 + ... + 10270932.

It is an arithmetic number, because the mean of its divisors is an integer number (16245114760).

Almost surely, 2^221301132212 is an apocalyptic number.

It is an amenable number.

221301132212 is a deficient number, since it is larger than the sum of its proper divisors (168581622028).

221301132212 is a wasteful number, since it uses less digits than its factorization.

221301132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38711 (or 38709 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221301132212 its reverse (212231103122), we get a palindrome (433532235334).

The spelling of 221301132212 in words is "two hundred twenty-one billion, three hundred one million, one hundred thirty-two thousand, two hundred twelve".