142222203420 has 48 divisors (see below), whose sum is σ = 434424187008. Its totient is φ = 34478109760.

The previous prime is 142222203379. The next prime is 142222203421. The reversal of 142222203420 is 24302222241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222203421) 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, 107743434 + ... + 107744753.

It is an arithmetic number, because the mean of its divisors is an integer number (9050503896).

Almost surely, 2^142222203420 is an apocalyptic number.

142222203420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142222203420 is an abundant number, since it is smaller than the sum of its proper divisors (292201983588).

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

142222203420 is a wasteful number, since it uses less digits than its factorization.

142222203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215488210 (or 215488208 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 142222203420 its reverse (24302222241), we get a palindrome (166524425661).

The spelling of 142222203420 in words is "one hundred forty-two billion, two hundred twenty-two million, two hundred three thousand, four hundred twenty".