1121101211021 has 8 divisors (see below), whose sum is σ = 1265192589600. Its totient is φ = 984038680240.

The previous prime is 1121101210819. The next prime is 1121101211029. The reversal of 1121101211021 is 1201121011211.

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

It is not a de Polignac number, because 1121101211021 - 2³⁸ = 846223304077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121101210987 and 1121101211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121101211029) 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 7 ways as a sum of consecutive naturals, for example, 1757211611 + ... + 1757212248.

It is an arithmetic number, because the mean of its divisors is an integer number (158149073700).

Almost surely, 2^{1121101211021} is an apocalyptic number.

1121101211021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121101211021 is a deficient number, since it is larger than the sum of its proper divisors (144091378579).

1121101211021 is a wasteful number, since it uses less digits than its factorization.

1121101211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514423899.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1121101211021 its reverse (1201121011211), we get a palindrome (2322222222232).

The spelling of 1121101211021 in words is "one trillion, one hundred twenty-one billion, one hundred one million, two hundred eleven thousand, twenty-one".