221130312010 has 32 divisors (see below), whose sum is σ = 408564025920. Its totient is φ = 86140267392.

The previous prime is 221130311977. The next prime is 221130312043. The reversal of 221130312010 is 10213031122.

221130312010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221130311977) and next prime (221130312043).

It is a super-2 number, since 2×221130312010² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1688259 + ... + 1814518.

It is an arithmetic number, because the mean of its divisors is an integer number (12767625810).

Almost surely, 2^221130312010 is an apocalyptic number.

221130312010 is a deficient number, since it is larger than the sum of its proper divisors (187433713910).

221130312010 is a wasteful number, since it uses less digits than its factorization.

221130312010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502950.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221130312010 its reverse (10213031122), we get a palindrome (231343343132).

The spelling of 221130312010 in words is "two hundred twenty-one billion, one hundred thirty million, three hundred twelve thousand, ten".