221254441411051 has 8 divisors (see below), whose sum is σ = 221299434102240. Its totient is φ = 221209450772352.

The previous prime is 221254441411043. The next prime is 221254441411067. The reversal of 221254441411051 is 150114144452122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221254441411051 - 2³ = 221254441411043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221254441411051.

It is not an unprimeable number, because it can be changed into a prime (221254441418051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 225143011 + ... + 226123603.

It is an arithmetic number, because the mean of its divisors is an integer number (27662429262780).

Almost surely, 2^{221254441411051} is an apocalyptic number.

221254441411051 is a deficient number, since it is larger than the sum of its proper divisors (44992691189).

221254441411051 is an equidigital number, since it uses as much as digits as its factorization.

221254441411051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026245.

The product of its (nonzero) digits is 51200, while the sum is 37.

Adding to 221254441411051 its reverse (150114144452122), we get a palindrome (371368585863173).

The spelling of 221254441411051 in words is "two hundred twenty-one trillion, two hundred fifty-four billion, four hundred forty-one million, four hundred eleven thousand, fifty-one".