221013030303212 has 18 divisors (see below), whose sum is σ = 449919383117652. Its totient is φ = 94719870129864.

The previous prime is 221013030303187. The next prime is 221013030303223. The reversal of 221013030303212 is 212303030310122.

It is a super-6 number, since 6×221013030303212⁶ (a number of 87 digits) contains 666666 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563808750578 + ... + 563808750969.

It is an arithmetic number, because the mean of its divisors is an integer number (24995521284314).

Almost surely, 2^{221013030303212} is an apocalyptic number.

It is an amenable number.

221013030303212 is an abundant number, since it is smaller than the sum of its proper divisors (228906352814440).

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

221013030303212 is a wasteful number, since it uses less digits than its factorization.

221013030303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127617501565 (or 1127617501556 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221013030303212 its reverse (212303030310122), we get a palindrome (433316060613334).

The spelling of 221013030303212 in words is "two hundred twenty-one trillion, thirteen billion, thirty million, three hundred three thousand, two hundred twelve".