242153221423210 has 16 divisors (see below), whose sum is σ = 436132649387016. Its totient is φ = 96804210608128.

The previous prime is 242153221423159. The next prime is 242153221423213. The reversal of 242153221423210 is 12324122351242.

It can be written as a sum of positive squares in 4 ways, for example, as 231347780834641 + 10805440588569 = 15210121^2 + 3287163^2 .

It is not an unprimeable number, because it can be changed into a prime (242153221423213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7134727327 + ... + 7134761266.

Almost surely, 2^{242153221423210} is an apocalyptic number.

242153221423210 is a deficient number, since it is larger than the sum of its proper divisors (193979427963806).

242153221423210 is a wasteful number, since it uses less digits than its factorization.

242153221423210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269490297.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 242153221423210 its reverse (12324122351242), we get a palindrome (254477343774452).

The spelling of 242153221423210 in words is "two hundred forty-two trillion, one hundred fifty-three billion, two hundred twenty-one million, four hundred twenty-three thousand, two hundred ten".