2220220042 has 8 divisors (see below), whose sum is σ = 3330696132. Its totient is φ = 1109988000.

The previous prime is 2220220027. The next prime is 2220220073. The reversal of 2220220042 is 2400220222.

It can be written as a sum of positive squares in 2 ways, for example, as 2220200161 + 19881 = 47119^2 + 141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2220219998 and 2220220025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36259 + ... + 75862.

Almost surely, 2^2220220042 is an apocalyptic number.

2220220042 is a deficient number, since it is larger than the sum of its proper divisors (1110476090).

2220220042 is a wasteful number, since it uses less digits than its factorization.

2220220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122024.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2220220042 is about 47119.2109653801. The cubic root of 2220220042 is about 1304.5638491003.

Adding to 2220220042 its reverse (2400220222), we get a palindrome (4620440264).

The spelling of 2220220042 in words is "two billion, two hundred twenty million, two hundred twenty thousand, forty-two".