1227332676221 has 8 divisors (see below), whose sum is σ = 1252106330040. Its totient is φ = 1202803098112.

The previous prime is 1227332676169. The next prime is 1227332676223. The reversal of 1227332676221 is 1226762337221.

It can be written as a sum of positive squares in 4 ways, for example, as 100308391225 + 1127024284996 = 316715^2 + 1061614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1227332676221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227332676223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61008770 + ... + 61028883.

It is an arithmetic number, because the mean of its divisors is an integer number (156513291255).

Almost surely, 2^{1227332676221} is an apocalyptic number.

It is an amenable number.

1227332676221 is a deficient number, since it is larger than the sum of its proper divisors (24773653819).

1227332676221 is a wasteful number, since it uses less digits than its factorization.

1227332676221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122037855.

The product of its digits is 508032, while the sum is 44.

The spelling of 1227332676221 in words is "one trillion, two hundred twenty-seven billion, three hundred thirty-two million, six hundred seventy-six thousand, two hundred twenty-one".