242400672221 has 8 divisors (see below), whose sum is σ = 242969818080. Its totient is φ = 241831626192.

The previous prime is 242400672211. The next prime is 242400672229. The reversal of 242400672221 is 122276004242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242400672221 - 2¹⁴ = 242400655837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242400672229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7378610 + ... + 7411388.

It is an arithmetic number, because the mean of its divisors is an integer number (30371227260).

Almost surely, 2^242400672221 is an apocalyptic number.

It is an amenable number.

242400672221 is a deficient number, since it is larger than the sum of its proper divisors (569145859).

242400672221 is a wasteful number, since it uses less digits than its factorization.

242400672221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49915.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 242400672221 its reverse (122276004242), we get a palindrome (364676676463).

The spelling of 242400672221 in words is "two hundred forty-two billion, four hundred million, six hundred seventy-two thousand, two hundred twenty-one".