210442232220042 has 32 divisors (see below), whose sum is σ = 422525138539392. Its totient is φ = 69873968922624.

The previous prime is 210442232220013. The next prime is 210442232220049. The reversal of 210442232220042 is 240022232244012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210442232219991 and 210442232220009.

It is not an unprimeable number, because it can be changed into a prime (210442232220049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264507603 + ... + 265302009.

It is an arithmetic number, because the mean of its divisors is an integer number (13203910579356).

Almost surely, 2^{210442232220042} is an apocalyptic number.

210442232220042 is an abundant number, since it is smaller than the sum of its proper divisors (212082906319350).

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

210442232220042 is a wasteful number, since it uses less digits than its factorization.

210442232220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966462.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 210442232220042 its reverse (240022232244012), we get a palindrome (450464464464054).

The spelling of 210442232220042 in words is "two hundred ten trillion, four hundred forty-two billion, two hundred thirty-two million, two hundred twenty thousand, forty-two".