4220121503 has 8 divisors (see below), whose sum is σ = 4545252096. Its totient is φ = 3895063200.

The previous prime is 4220121457. The next prime is 4220121511. The reversal of 4220121503 is 3051210224.

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 4220121503 - 2¹⁶ = 4220055967 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 (4220121533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207938 + ... + 227328.

It is an arithmetic number, because the mean of its divisors is an integer number (568156512).

Almost surely, 2^4220121503 is an apocalyptic number.

4220121503 is a deficient number, since it is larger than the sum of its proper divisors (325130593).

4220121503 is a wasteful number, since it uses less digits than its factorization.

4220121503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36145.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4220121503 is about 64962.4622609088. The cubic root of 4220121503 is about 1616.0010986201.

Adding to 4220121503 its reverse (3051210224), we get a palindrome (7271331727).

The spelling of 4220121503 in words is "four billion, two hundred twenty million, one hundred twenty-one thousand, five hundred three".