1227955877105 has 8 divisors (see below), whose sum is σ = 1493732629032. Its totient is φ = 968907650688.

The previous prime is 1227955877023. The next prime is 1227955877107. The reversal of 1227955877105 is 5017785597221.

It can be written as a sum of positive squares in 4 ways, for example, as 475337165809 + 752618711296 = 689447^2 + 867536^2 .

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 1227955877105 - 2¹⁴ = 1227955860721 is a prime.

It is a super-2 number, since 2×1227955877105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1227955877107) 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, 1682130974 + ... + 1682131703.

It is an arithmetic number, because the mean of its divisors is an integer number (186716578629).

Almost surely, 2^{1227955877105} is an apocalyptic number.

It is an amenable number.

1227955877105 is a deficient number, since it is larger than the sum of its proper divisors (265776751927).

1227955877105 is an equidigital number, since it uses as much as digits as its factorization.

1227955877105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364262755.

The product of its (nonzero) digits is 12348000, while the sum is 59.

The spelling of 1227955877105 in words is "one trillion, two hundred twenty-seven billion, nine hundred fifty-five million, eight hundred seventy-seven thousand, one hundred five".