1100225412221 has 4 divisors (see below), whose sum is σ = 1184858136252. Its totient is φ = 1015592688192.

The previous prime is 1100225412211. The next prime is 1100225412227. The reversal of 1100225412221 is 1222145220011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112416031225 + 987809380996 = 335285^2 + 993886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100225412221 - 2¹⁸ = 1100225150077 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 (1100225412227) 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 in 3 ways as a sum of consecutive naturals, for example, 42316361996 + ... + 42316362021.

It is an arithmetic number, because the mean of its divisors is an integer number (296214534063).

Almost surely, 2^{1100225412221} is an apocalyptic number.

It is an amenable number.

1100225412221 is a deficient number, since it is larger than the sum of its proper divisors (84632724031).

1100225412221 is an equidigital number, since it uses as much as digits as its factorization.

1100225412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84632724030.

The product of its (nonzero) digits is 640, while the sum is 23.

The spelling of 1100225412221 in words is "one trillion, one hundred billion, two hundred twenty-five million, four hundred twelve thousand, two hundred twenty-one".