244022240251 has 2 divisors, whose sum is σ = 244022240252. Its totient is φ = 244022240250.

The previous prime is 244022240233. The next prime is 244022240279. The reversal of 244022240251 is 152042220442.

It is a happy number.

It is an a-pointer prime, because the next prime (244022240279) can be obtained adding 244022240251 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244022240251 - 2¹³ = 244022232059 is a prime.

It is not a weakly prime, because it can be changed into another prime (244022240291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122011120125 + 122011120126.

It is an arithmetic number, because the mean of its divisors is an integer number (122011120126).

Almost surely, 2^244022240251 is an apocalyptic number.

244022240251 is a deficient number, since it is larger than the sum of its proper divisors (1).

244022240251 is an equidigital number, since it uses as much as digits as its factorization.

244022240251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 244022240251 its reverse (152042220442), we get a palindrome (396064460693).

The spelling of 244022240251 in words is "two hundred forty-four billion, twenty-two million, two hundred forty thousand, two hundred fifty-one".