221313010212 has 48 divisors (see below), whose sum is σ = 655742254720. Its totient is φ = 63232288416.

The previous prime is 221313010189. The next prime is 221313010229. The reversal of 221313010212 is 212010313122.

221313010212 is a `hidden beast` number, since 22 + 131 + 301 + 0 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146370283 + ... + 146371794.

Almost surely, 2^221313010212 is an apocalyptic number.

It is an amenable number.

221313010212 is an abundant number, since it is smaller than the sum of its proper divisors (434429244508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221313010212 is a wasteful number, since it uses less digits than its factorization.

221313010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292742097 (or 292742089 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221313010212 its reverse (212010313122), we get a palindrome (433323323334).

The spelling of 221313010212 in words is "two hundred twenty-one billion, three hundred thirteen million, ten thousand, two hundred twelve".