1124648221 has 2 divisors, whose sum is σ = 1124648222. Its totient is φ = 1124648220.

The previous prime is 1124648197. The next prime is 1124648251. The reversal of 1124648221 is 1228464211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014104025 + 110544196 = 31845^2 + 10514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124648221 - 2¹³ = 1124640029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124648251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562324110 + 562324111.

It is an arithmetic number, because the mean of its divisors is an integer number (562324111).

Almost surely, 2^1124648221 is an apocalyptic number.

It is an amenable number.

1124648221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124648221 is an equidigital number, since it uses as much as digits as its factorization.

1124648221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 31.

The square root of 1124648221 is about 33535.7752407783. The cubic root of 1124648221 is about 1039.9334958090.

The spelling of 1124648221 in words is "one billion, one hundred twenty-four million, six hundred forty-eight thousand, two hundred twenty-one".