2222220042 has 64 divisors (see below), whose sum is σ = 5975735040. Its totient is φ = 597570048.

The previous prime is 2222219999. The next prime is 2222220047. The reversal of 2222220042 is 2400222222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2222219997 and 2222220024.

It is not an unprimeable number, because it can be changed into a prime (2222220047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166483 + ... + 179334.

It is an arithmetic number, because the mean of its divisors is an integer number (93370860).

Almost surely, 2^2222220042 is an apocalyptic number.

2222220042 is an abundant number, since it is smaller than the sum of its proper divisors (3753514998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222220042 is a wasteful number, since it uses less digits than its factorization.

2222220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345852 (or 345846 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2222220042 is about 47140.4289543487. The cubic root of 2222220042 is about 1304.9554536254.

Adding to 2222220042 its reverse (2400222222), we get a palindrome (4622442264).

The spelling of 2222220042 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand, forty-two".