55221422343203 has 4 divisors (see below), whose sum is σ = 55223195758920. Its totient is φ = 55219648927488.

The previous prime is 55221422343181. The next prime is 55221422343211. The reversal of 55221422343203 is 30234322412255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55221422343203 - 2¹² = 55221422339107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55221422343403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886661150 + ... + 886723427.

It is an arithmetic number, because the mean of its divisors is an integer number (13805798939730).

Almost surely, 2^{55221422343203} is an apocalyptic number.

55221422343203 is a deficient number, since it is larger than the sum of its proper divisors (1773415717).

55221422343203 is a wasteful number, since it uses less digits than its factorization.

55221422343203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773415716.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 55221422343203 its reverse (30234322412255), we get a palindrome (85455744755458).

The spelling of 55221422343203 in words is "fifty-five trillion, two hundred twenty-one billion, four hundred twenty-two million, three hundred forty-three thousand, two hundred three".