1051104221 has 2 divisors, whose sum is σ = 1051104222. Its totient is φ = 1051104220.

The previous prime is 1051104211. The next prime is 1051104227. The reversal of 1051104221 is 1224011501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640596100 + 410508121 = 25310^2 + 20261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051104221 - 2⁶ = 1051104157 is a prime.

It is a super-2 number, since 2×1051104221² = 2209640166808033682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051104221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051104227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525552110 + 525552111.

It is an arithmetic number, because the mean of its divisors is an integer number (525552111).

Almost surely, 2^1051104221 is an apocalyptic number.

It is an amenable number.

1051104221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051104221 is an equidigital number, since it uses as much as digits as its factorization.

1051104221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1051104221 is about 32420.7375147451. The cubic root of 1051104221 is about 1016.7525260224.

Adding to 1051104221 its reverse (1224011501), we get a palindrome (2275115722).

The spelling of 1051104221 in words is "one billion, fifty-one million, one hundred four thousand, two hundred twenty-one".