222221421042342 has 16 divisors (see below), whose sum is σ = 444442988206080. Its totient is φ = 74073782660552.

The previous prime is 222221421042323. The next prime is 222221421042343. The reversal of 222221421042342 is 243240124122222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221421042343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32330659 + ... + 38596817.

It is an arithmetic number, because the mean of its divisors is an integer number (27777686762880).

Almost surely, 2^{222221421042342} is an apocalyptic number.

222221421042342 is an abundant number, since it is smaller than the sum of its proper divisors (222221567163738).

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

222221421042342 is a wasteful number, since it uses less digits than its factorization.

222221421042342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12176787.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 222221421042342 its reverse (243240124122222), we get a palindrome (465461545164564).

The spelling of 222221421042342 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, four hundred twenty-one million, forty-two thousand, three hundred forty-two".