254402400222121 has 8 divisors (see below), whose sum is σ = 255418469619264. Its totient is φ = 253386350778000.

The previous prime is 254402400222059. The next prime is 254402400222197. The reversal of 254402400222121 is 121222004204452.

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 254402400222121 - 2⁷ = 254402400221993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254402400222221) 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, 20829100 + ... + 30702706.

It is an arithmetic number, because the mean of its divisors is an integer number (31927308702408).

Almost surely, 2^{254402400222121} is an apocalyptic number.

It is an amenable number.

254402400222121 is a deficient number, since it is larger than the sum of its proper divisors (1016069397143).

254402400222121 is a wasteful number, since it uses less digits than its factorization.

254402400222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9976511.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 254402400222121 its reverse (121222004204452), we get a palindrome (375624404426573).

The spelling of 254402400222121 in words is "two hundred fifty-four trillion, four hundred two billion, four hundred million, two hundred twenty-two thousand, one hundred twenty-one".