221411640711744 has 140 divisors (see below), whose sum is σ = 750095388751104. Its totient is φ = 63260468764416.

The previous prime is 221411640711733. The next prime is 221411640711757. The reversal of 221411640711744 is 447117046114122.

221411640711744 is a `hidden beast` number, since 2 + 2 + 1 + 411 + 64 + 0 + 7 + 1 + 174 + 4 = 666.

It is a super-2 number, since 2×221411640711744² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221411640711744.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3050719344 + ... + 3050791919.

Almost surely, 2^{221411640711744} is an apocalyptic number.

221411640711744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221411640711744 is an abundant number, since it is smaller than the sum of its proper divisors (528683748039360).

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

221411640711744 is an equidigital number, since it uses as much as digits as its factorization.

221411640711744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101511294 (or 6101511275 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

Adding to 221411640711744 its reverse (447117046114122), we get a palindrome (668528686825866).

The spelling of 221411640711744 in words is "two hundred twenty-one trillion, four hundred eleven billion, six hundred forty million, seven hundred eleven thousand, seven hundred forty-four".