42420220222 has 4 divisors (see below), whose sum is σ = 63630330336. Its totient is φ = 21210110110.

The previous prime is 42420220217. The next prime is 42420220247. The reversal of 42420220222 is 22202202424.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42420220193 and 42420220202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605055054 + ... + 10605055057.

It is an arithmetic number, because the mean of its divisors is an integer number (15907582584).

Almost surely, 2^42420220222 is an apocalyptic number.

42420220222 is a deficient number, since it is larger than the sum of its proper divisors (21210110114).

42420220222 is a wasteful number, since it uses less digits than its factorization.

42420220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21210110113.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 42420220222 its reverse (22202202424), we get a palindrome (64622422646).

The spelling of 42420220222 in words is "forty-two billion, four hundred twenty million, two hundred twenty thousand, two hundred twenty-two".