1121042440201 has 16 divisors (see below), whose sum is σ = 1240074314640. Its totient is φ = 1008629708800.

The previous prime is 1121042440187. The next prime is 1121042440207. The reversal of 1121042440201 is 1020442401211.

It can be written as a sum of positive squares in 8 ways, for example, as 307690980601 + 813351459600 = 554699^2 + 901860^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121042440201 - 2⁷ = 1121042440073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121042440207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11207236 + ... + 11306821.

It is an arithmetic number, because the mean of its divisors is an integer number (77504644665).

Almost surely, 2^{1121042440201} is an apocalyptic number.

It is an amenable number.

1121042440201 is a deficient number, since it is larger than the sum of its proper divisors (119031874439).

1121042440201 is a wasteful number, since it uses less digits than its factorization.

1121042440201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22514204.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1121042440201 its reverse (1020442401211), we get a palindrome (2141484841412).

The spelling of 1121042440201 in words is "one trillion, one hundred twenty-one billion, forty-two million, four hundred forty thousand, two hundred one".