244400210121 has 8 divisors (see below), whose sum is σ = 325908987264. Its totient is φ = 162912453200.

The previous prime is 244400210101. The next prime is 244400210141. The reversal of 244400210121 is 121012004442.

It is an interprime number because it is at equal distance from previous prime (244400210101) and next prime (244400210141).

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 244400210121 - 2⁹ = 244400209609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (244400210101) 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, 5227905 + ... + 5274446.

It is an arithmetic number, because the mean of its divisors is an integer number (40738623408).

Almost surely, 2^244400210121 is an apocalyptic number.

It is an amenable number.

244400210121 is a deficient number, since it is larger than the sum of its proper divisors (81508777143).

244400210121 is a wasteful number, since it uses less digits than its factorization.

244400210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510111.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 244400210121 its reverse (121012004442), we get a palindrome (365412214563).

The spelling of 244400210121 in words is "two hundred forty-four billion, four hundred million, two hundred ten thousand, one hundred twenty-one".