221130213222222 has 24 divisors (see below), whose sum is σ = 479117407742064. Its totient is φ = 73709771726304.

The previous prime is 221130213222133. The next prime is 221130213222241. The reversal of 221130213222222 is 222222312031122.

221130213222222 is a `hidden beast` number, since 2 + 2 + 1 + 1 + 3 + 0 + 213 + 222 + 222 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20367583 + ... + 29276250.

It is an arithmetic number, because the mean of its divisors is an integer number (19963225322586).

Almost surely, 2^{221130213222222} is an apocalyptic number.

221130213222222 is an abundant number, since it is smaller than the sum of its proper divisors (257987194519842).

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

221130213222222 is a wasteful number, since it uses less digits than its factorization.

221130213222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49891304 (or 49891301 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221130213222222 its reverse (222222312031122), we get a palindrome (443352525253344).

The spelling of 221130213222222 in words is "two hundred twenty-one trillion, one hundred thirty billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred twenty-two".