1122020112001 has 4 divisors (see below), whose sum is σ = 1122514614100. Its totient is φ = 1121525609904.

The previous prime is 1122020111983. The next prime is 1122020112007. The reversal of 1122020112001 is 1002110202211.

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 14371214400 + 1107648897601 = 119880^2 + 1052449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122020112001 - 2²⁵ = 1121986557569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122020112007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247247646 + ... + 247252183.

It is an arithmetic number, because the mean of its divisors is an integer number (280628653525).

Almost surely, 2^{1122020112001} is an apocalyptic number.

It is an amenable number.

1122020112001 is a deficient number, since it is larger than the sum of its proper divisors (494502099).

1122020112001 is an equidigital number, since it uses as much as digits as its factorization.

1122020112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494502098.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1122020112001 its reverse (1002110202211), we get a palindrome (2124130314212).

The spelling of 1122020112001 in words is "one trillion, one hundred twenty-two billion, twenty million, one hundred twelve thousand, one".