4221555045 has 16 divisors (see below), whose sum is σ = 6972375552. Its totient is φ = 2178866880.

The previous prime is 4221555031. The next prime is 4221555049. The reversal of 4221555045 is 5405551224.

It is not a de Polignac number, because 4221555045 - 2⁴ = 4221555029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4221554997 and 4221555015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221555049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4538842 + ... + 4539771.

It is an arithmetic number, because the mean of its divisors is an integer number (435773472).

Almost surely, 2^4221555045 is an apocalyptic number.

It is an amenable number.

4221555045 is a deficient number, since it is larger than the sum of its proper divisors (2750820507).

4221555045 is a wasteful number, since it uses less digits than its factorization.

4221555045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078652.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 4221555045 is about 64973.4949421685. The cubic root of 4221555045 is about 1616.1840588488.

The spelling of 4221555045 in words is "four billion, two hundred twenty-one million, five hundred fifty-five thousand, forty-five".