1228137327057 has 4 divisors (see below), whose sum is σ = 1637516436080. Its totient is φ = 818758218036.

The previous prime is 1228137327037. The next prime is 1228137327107. The reversal of 1228137327057 is 7507237318221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1228137327057 - 2¹⁵ = 1228137294289 is a prime.

It is a super-2 number, since 2×1228137327057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1228137326997 and 1228137327015.

It is not an unprimeable number, because it can be changed into a prime (1228137327037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204689554507 + ... + 204689554512.

It is an arithmetic number, because the mean of its divisors is an integer number (409379109020).

Almost surely, 2^{1228137327057} is an apocalyptic number.

It is an amenable number.

1228137327057 is a deficient number, since it is larger than the sum of its proper divisors (409379109023).

1228137327057 is an equidigital number, since it uses as much as digits as its factorization.

1228137327057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409379109022.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 1228137327057 in words is "one trillion, two hundred twenty-eight billion, one hundred thirty-seven million, three hundred twenty-seven thousand, fifty-seven".