1101244201 has 8 divisors (see below), whose sum is σ = 1127845544. Its totient is φ = 1074954240.

The previous prime is 1101244187. The next prime is 1101244213. The reversal of 1101244201 is 1024421011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 146434201 + 954810000 = 12101^2 + 30900^2 .

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

It is a 8-Lehmer number, since φ(1101244201) divides (1101244201-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 1101244201 - 2⁷ = 1101244073 is a prime.

It is a super-2 number, since 2×1101244201² = 2425477580472256802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101244271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70680 + ... + 84841.

It is an arithmetic number, because the mean of its divisors is an integer number (140980693).

Almost surely, 2^1101244201 is an apocalyptic number.

It is an amenable number.

1101244201 is a deficient number, since it is larger than the sum of its proper divisors (26601343).

1101244201 is an equidigital number, since it uses as much as digits as its factorization.

1101244201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155691.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1101244201 is about 33184.9996383908. Note that the first 3 decimals coincide. The cubic root of 1101244201 is about 1032.6691700053.

Adding to 1101244201 its reverse (1024421011), we get a palindrome (2125665212).

The spelling of 1101244201 in words is "one billion, one hundred one million, two hundred forty-four thousand, two hundred one".