5550035111221 has 4 divisors (see below), whose sum is σ = 5550041403244. Its totient is φ = 5550028819200.

The previous prime is 5550035111213. The next prime is 5550035111287. The reversal of 5550035111221 is 1221115300555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4442036772996 + 1107998338225 = 2107614^2 + 1052615^2 .

It is a cyclic number.

It is not a de Polignac number, because 5550035111221 - 2³ = 5550035111213 is a prime.

It is a super-2 number, since 2×5550035111221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550035111921) 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 3 ways as a sum of consecutive naturals, for example, 1554540 + ... + 3676501.

It is an arithmetic number, because the mean of its divisors is an integer number (1387510350811).

Almost surely, 2^{5550035111221} is an apocalyptic number.

It is an amenable number.

5550035111221 is a deficient number, since it is larger than the sum of its proper divisors (6292023).

5550035111221 is a wasteful number, since it uses less digits than its factorization.

5550035111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6292022.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 5550035111221 in words is "five trillion, five hundred fifty billion, thirty-five million, one hundred eleven thousand, two hundred twenty-one".