142100433124221 has 128 divisors (see below), whose sum is σ = 235166878679040. Its totient is φ = 75126552883200.

The previous prime is 142100433124157. The next prime is 142100433124229. The reversal of 142100433124221 is 122421334001241.

It is a happy number.

It is not a de Polignac number, because 142100433124221 - 2⁶ = 142100433124157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142100433124229) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2834670085 + ... + 2834720213.

It is an arithmetic number, because the mean of its divisors is an integer number (1837241239680).

Almost surely, 2^{142100433124221} is an apocalyptic number.

142100433124221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142100433124221 is a deficient number, since it is larger than the sum of its proper divisors (93066445554819).

142100433124221 is a wasteful number, since it uses less digits than its factorization.

142100433124221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55187.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 142100433124221 its reverse (122421334001241), we get a palindrome (264521767125462).

The spelling of 142100433124221 in words is "one hundred forty-two trillion, one hundred billion, four hundred thirty-three million, one hundred twenty-four thousand, two hundred twenty-one".