227212159997 has 2 divisors, whose sum is σ = 227212159998. Its totient is φ = 227212159996.

The previous prime is 227212159987. The next prime is 227212160081. The reversal of 227212159997 is 799951212722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177246052036 + 49966107961 = 421006^2 + 223531^2 .

It is a cyclic number.

It is not a de Polignac number, because 227212159997 - 2²² = 227207965693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227212159987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113606079998 + 113606079999.

It is an arithmetic number, because the mean of its divisors is an integer number (113606079999).

Almost surely, 2^227212159997 is an apocalyptic number.

It is an amenable number.

227212159997 is a deficient number, since it is larger than the sum of its proper divisors (1).

227212159997 is an equidigital number, since it uses as much as digits as its factorization.

227212159997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 56.

The spelling of 227212159997 in words is "two hundred twenty-seven billion, two hundred twelve million, one hundred fifty-nine thousand, nine hundred ninety-seven".