142204221420 has 48 divisors (see below), whose sum is σ = 398253397248. Its totient is φ = 37913356480.

The previous prime is 142204221413. The next prime is 142204221443. The reversal of 142204221420 is 24122402241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55537 + ... + 536183.

It is an arithmetic number, because the mean of its divisors is an integer number (8296945776).

Almost surely, 2^142204221420 is an apocalyptic number.

142204221420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142204221420 is an abundant number, since it is smaller than the sum of its proper divisors (256049175828).

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

142204221420 is a wasteful number, since it uses less digits than its factorization.

142204221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485590 (or 485588 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 142204221420 its reverse (24122402241), we get a palindrome (166326623661).

The spelling of 142204221420 in words is "one hundred forty-two billion, two hundred four million, two hundred twenty-one thousand, four hundred twenty".