100226207780381 has 2 divisors, whose sum is σ = 100226207780382. Its totient is φ = 100226207780380.

The previous prime is 100226207780357. The next prime is 100226207780431. The reversal of 100226207780381 is 183087702622001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66952749841156 + 33273457939225 = 8182466^2 + 5768315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100226207780381 is a prime.

It is a super-3 number, since 3×100226207780381³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100226207780351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50113103890190 + 50113103890191.

It is an arithmetic number, because the mean of its divisors is an integer number (50113103890191).

Almost surely, 2^{100226207780381} is an apocalyptic number.

It is an amenable number.

100226207780381 is a deficient number, since it is larger than the sum of its proper divisors (1).

100226207780381 is an equidigital number, since it uses as much as digits as its factorization.

100226207780381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 100226207780381 in words is "one hundred trillion, two hundred twenty-six billion, two hundred seven million, seven hundred eighty thousand, three hundred eighty-one".