221212232303130 has 48 divisors (see below), whose sum is σ = 582081343814880. Its totient is φ = 58279206580704.

The previous prime is 221212232303089. The next prime is 221212232303141. The reversal of 221212232303130 is 31303232212122.

221212232303130 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 1 + 22 + 323 + 0 + 313 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 221212232303094 and 221212232303103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14806701520 + ... + 14806716459.

It is an arithmetic number, because the mean of its divisors is an integer number (12126694662810).

Almost surely, 2^{221212232303130} is an apocalyptic number.

221212232303130 is an abundant number, since it is smaller than the sum of its proper divisors (360869111511750).

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

221212232303130 is a wasteful number, since it uses less digits than its factorization.

221212232303130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29613418075 (or 29613418072 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 221212232303130 its reverse (31303232212122), we get a palindrome (252515464515252).

The spelling of 221212232303130 in words is "two hundred twenty-one trillion, two hundred twelve billion, two hundred thirty-two million, three hundred three thousand, one hundred thirty".