142030012221 has 14 divisors (see below), whose sum is σ = 212947605150. Its totient is φ = 94686674328.

The previous prime is 142030012193. The next prime is 142030012247. The reversal of 142030012221 is 122210030241.

It is a happy number.

142030012221 is a `hidden beast` number, since 142 + 0 + 300 + 1 + 2 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78394400100 + 63635612121 = 279990^2 + 252261^2 .

It is not a de Polignac number, because 142030012221 - 2⁷ = 142030012093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142030012194 and 142030012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142030013221) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 97413546 + ... + 97415003.

It is an arithmetic number, because the mean of its divisors is an integer number (15210543225).

Almost surely, 2^142030012221 is an apocalyptic number.

It is an amenable number.

142030012221 is a deficient number, since it is larger than the sum of its proper divisors (70917592929).

142030012221 is an frugal number, since it uses more digits than its factorization.

142030012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194828567 (or 194828552 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 142030012221 its reverse (122210030241), we get a palindrome (264240042462).

The spelling of 142030012221 in words is "one hundred forty-two billion, thirty million, twelve thousand, two hundred twenty-one".