142302223221 has 24 divisors (see below), whose sum is σ = 206473760640. Its totient is φ = 86874446592.

The previous prime is 142302223201. The next prime is 142302223223. The reversal of 142302223221 is 122322203241.

It is not a de Polignac number, because 142302223221 - 2⁹ = 142302222709 is a prime.

It is a super-2 number, since 2×142302223221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142302223191 and 142302223200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142302223223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 949261 + ... + 1088898.

It is an arithmetic number, because the mean of its divisors is an integer number (8603073360).

Almost surely, 2^142302223221 is an apocalyptic number.

It is an amenable number.

142302223221 is a deficient number, since it is larger than the sum of its proper divisors (64171537419).

142302223221 is a wasteful number, since it uses less digits than its factorization.

142302223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038253 (or 2038216 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 142302223221 its reverse (122322203241), we get a palindrome (264624426462).

The spelling of 142302223221 in words is "one hundred forty-two billion, three hundred two million, two hundred twenty-three thousand, two hundred twenty-one".