222012210042 has 56 divisors (see below), whose sum is σ = 570627529056. Its totient is φ = 63432057096.

The previous prime is 222012210029. The next prime is 222012210067. The reversal of 222012210042 is 240012210222.

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 = 222012209997 and 222012210024.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10866348 + ... + 10886759.

Almost surely, 2^222012210042 is an apocalyptic number.

222012210042 is an abundant number, since it is smaller than the sum of its proper divisors (348615319014).

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

222012210042 is an equidigital number, since it uses as much as digits as its factorization.

222012210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21753134 (or 21753119 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222012210042 its reverse (240012210222), we get a palindrome (462024420264).

The spelling of 222012210042 in words is "two hundred twenty-two billion, twelve million, two hundred ten thousand, forty-two".