4220120145 has 16 divisors (see below), whose sum is σ = 6844689792. Its totient is φ = 2219898240.

The previous prime is 4220120131. The next prime is 4220120159. The reversal of 4220120145 is 5410210224.

It is an interprime number because it is at equal distance from previous prime (4220120131) and next prime (4220120159).

It is not a de Polignac number, because 4220120145 - 2¹³ = 4220111953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1925901 + ... + 1928090.

It is an arithmetic number, because the mean of its divisors is an integer number (427793112).

Almost surely, 2^4220120145 is an apocalyptic number.

It is an amenable number.

4220120145 is a deficient number, since it is larger than the sum of its proper divisors (2624569647).

4220120145 is a wasteful number, since it uses less digits than its factorization.

4220120145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854072.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4220120145 is about 64962.4518087179. The cubic root of 4220120145 is about 1616.0009252815. Note that the first 3 decimals are identical.

Adding to 4220120145 its reverse (5410210224), we get a palindrome (9630330369).

The spelling of 4220120145 in words is "four billion, two hundred twenty million, one hundred twenty thousand, one hundred forty-five".