142041222 has 64 divisors (see below), whose sum is σ = 335923200. Its totient is φ = 44334720.

The previous prime is 142041167. The next prime is 142041247. The reversal of 142041222 is 222140241.

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 = 142041195 and 142041204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329347 + ... + 329777.

It is an arithmetic number, because the mean of its divisors is an integer number (5248800).

Almost surely, 2^142041222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142041222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167961600).

142041222 is an abundant number, since it is smaller than the sum of its proper divisors (193881978).

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

142041222 is a wasteful number, since it uses less digits than its factorization.

142041222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 812 counting only the distinct ones).

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

The square root of 142041222 is about 11918.1047990022. The cubic root of 142041222 is about 521.7608231796.

Adding to 142041222 its reverse (222140241), we get a palindrome (364181463).

The spelling of 142041222 in words is "one hundred forty-two million, forty-one thousand, two hundred twenty-two".