242155222415250 has 64 divisors (see below), whose sum is σ = 604423193242752. Its totient is φ = 64574324472000.

The previous prime is 242155222415233. The next prime is 242155222415251. The reversal of 242155222415250 is 52514222551242.

It is not an unprimeable number, because it can be changed into a prime (242155222415251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131322145 + ... + 133153355.

It is an arithmetic number, because the mean of its divisors is an integer number (9444112394418).

Almost surely, 2^{242155222415250} is an apocalyptic number.

242155222415250 is an abundant number, since it is smaller than the sum of its proper divisors (362267970827502).

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

242155222415250 is a wasteful number, since it uses less digits than its factorization.

242155222415250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007548 (or 2007538 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 242155222415250 its reverse (52514222551242), we get a palindrome (294669444966492).

The spelling of 242155222415250 in words is "two hundred forty-two trillion, one hundred fifty-five billion, two hundred twenty-two million, four hundred fifteen thousand, two hundred fifty".