251201220727267 has 2 divisors, whose sum is σ = 251201220727268. Its totient is φ = 251201220727266.

The previous prime is 251201220727243. The next prime is 251201220727321. The reversal of 251201220727267 is 762727022102152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 251201220727267 - 2¹⁹ = 251201220202979 is a prime.

It is not a weakly prime, because it can be changed into another prime (251201220727217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125600610363633 + 125600610363634.

It is an arithmetic number, because the mean of its divisors is an integer number (125600610363634).

Almost surely, 2^{251201220727267} is an apocalyptic number.

251201220727267 is a deficient number, since it is larger than the sum of its proper divisors (1).

251201220727267 is an equidigital number, since it uses as much as digits as its factorization.

251201220727267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 251201220727267 in words is "two hundred fifty-one trillion, two hundred one billion, two hundred twenty million, seven hundred twenty-seven thousand, two hundred sixty-seven".