4221554101 has 4 divisors (see below), whose sum is σ = 4222235052. Its totient is φ = 4220873152.

The previous prime is 4221554069. The next prime is 4221554107. The reversal of 4221554101 is 1014551224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2852628100 + 1368926001 = 53410^2 + 36999^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221554101 - 2⁵ = 4221554069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221554107) 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, 331090 + ... + 343603.

It is an arithmetic number, because the mean of its divisors is an integer number (1055558763).

Almost surely, 2^4221554101 is an apocalyptic number.

It is an amenable number.

4221554101 is a deficient number, since it is larger than the sum of its proper divisors (680951).

4221554101 is an equidigital number, since it uses as much as digits as its factorization.

4221554101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680950.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4221554101 is about 64973.4876776674. The cubic root of 4221554101 is about 1616.1839383815.

The spelling of 4221554101 in words is "four billion, two hundred twenty-one million, five hundred fifty-four thousand, one hundred one".