1121121111201 has 96 divisors (see below), whose sum is σ = 1911586728960. Its totient is φ = 571837024512.

The previous prime is 1121121111191. The next prime is 1121121111211. The reversal of 1121121111201 is 1021111211211.

It is an interprime number because it is at equal distance from previous prime (1121121111191) and next prime (1121121111211).

It is not a de Polignac number, because 1121121111201 - 2⁶ = 1121121111137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121121111211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21377830 + ... + 21430208.

It is an arithmetic number, because the mean of its divisors is an integer number (19912361760).

Almost surely, 2^{1121121111201} is an apocalyptic number.

It is an amenable number.

1121121111201 is a deficient number, since it is larger than the sum of its proper divisors (790465617759).

1121121111201 is a wasteful number, since it uses less digits than its factorization.

1121121111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52615 (or 52602 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1121121111201 its reverse (1021111211211), we get a palindrome (2142232322412).

The spelling of 1121121111201 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred eleven thousand, two hundred one".