142221603132 has 144 divisors (see below), whose sum is σ = 420040857600. Its totient is φ = 39728791296.

The previous prime is 142221603131. The next prime is 142221603163. The reversal of 142221603132 is 231306122241.

142221603132 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 21 + 603 + 1 + 32 = 666.

It is a super-2 number, since 2×142221603132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142221603096 and 142221603105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142221603131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12418633 + ... + 12430079.

It is an arithmetic number, because the mean of its divisors is an integer number (2916950400).

Almost surely, 2^142221603132 is an apocalyptic number.

142221603132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142221603132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210020428800).

142221603132 is an abundant number, since it is smaller than the sum of its proper divisors (277819254468).

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

142221603132 is a wasteful number, since it uses less digits than its factorization.

142221603132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560 (or 12555 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 142221603132 its reverse (231306122241), we get a palindrome (373527725373).

The spelling of 142221603132 in words is "one hundred forty-two billion, two hundred twenty-one million, six hundred three thousand, one hundred thirty-two".