1127408221 has 2 divisors, whose sum is σ = 1127408222. Its totient is φ = 1127408220.

The previous prime is 1127408213. The next prime is 1127408239. The reversal of 1127408221 is 1228047211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 581484996 + 545923225 = 24114^2 + 23365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127408221 - 2³ = 1127408213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1127408221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1127408021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563704110 + 563704111.

It is an arithmetic number, because the mean of its divisors is an integer number (563704111).

Almost surely, 2^1127408221 is an apocalyptic number.

It is an amenable number.

1127408221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127408221 is an equidigital number, since it uses as much as digits as its factorization.

1127408221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1127408221 is about 33576.9001100459. The cubic root of 1127408221 is about 1040.7835013655.

The spelling of 1127408221 in words is "one billion, one hundred twenty-seven million, four hundred eight thousand, two hundred twenty-one".