221010411312 has 30 divisors (see below), whose sum is σ = 618522193172. Its totient is φ = 73670137056.

The previous prime is 221010411289. The next prime is 221010411397. The reversal of 221010411312 is 213114010122.

221010411312 is a `hidden beast` number, since 2 + 210 + 10 + 411 + 31 + 2 = 666.

It is a super-2 number, since 2×221010411312² (a number of 23 digits) contains 22 as substring.

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

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, 767397118 + ... + 767397405.

Almost surely, 2^221010411312 is an apocalyptic number.

It is an amenable number.

221010411312 is an abundant number, since it is smaller than the sum of its proper divisors (397511781860).

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

221010411312 is a wasteful number, since it uses less digits than its factorization.

221010411312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534794537 (or 1534794528 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 221010411312 its reverse (213114010122), we get a palindrome (434124421434).

The spelling of 221010411312 in words is "two hundred twenty-one billion, ten million, four hundred eleven thousand, three hundred twelve".