142231020220 has 48 divisors (see below), whose sum is σ = 302916993120. Its totient is φ = 56087064576.

The previous prime is 142231020181. The next prime is 142231020227. The reversal of 142231020220 is 22020132241.

It is a super-2 number, since 2×142231020220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231020227) 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, 3297151 + ... + 3340009.

It is an arithmetic number, because the mean of its divisors is an integer number (6310770690).

Almost surely, 2^142231020220 is an apocalyptic number.

142231020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142231020220 is an abundant number, since it is smaller than the sum of its proper divisors (160685972900).

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

142231020220 is a wasteful number, since it uses less digits than its factorization.

142231020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45214 (or 45212 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 142231020220 its reverse (22020132241), we get a palindrome (164251152461).

The spelling of 142231020220 in words is "one hundred forty-two billion, two hundred thirty-one million, twenty thousand, two hundred twenty".