11120020210121 has 4 divisors (see below), whose sum is σ = 11124174123972. Its totient is φ = 11115866296272.

The previous prime is 11120020210097. The next prime is 11120020210261. The reversal of 11120020210121 is 12101202002111.

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 5031784730896 + 6088235479225 = 2243164^2 + 2467435^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120020210121 - 2¹⁰ = 11120020209097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120020210096 and 11120020210105.

It is not an unprimeable number, because it can be changed into a prime (11120020210721) 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, 2076952910 + ... + 2076958263.

It is an arithmetic number, because the mean of its divisors is an integer number (2781043530993).

Almost surely, 2^{11120020210121} is an apocalyptic number.

It is an amenable number.

11120020210121 is a deficient number, since it is larger than the sum of its proper divisors (4153913851).

11120020210121 is an equidigital number, since it uses as much as digits as its factorization.

11120020210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153913850.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11120020210121 its reverse (12101202002111), we get a palindrome (23221222212232).

The spelling of 11120020210121 in words is "eleven trillion, one hundred twenty billion, twenty million, two hundred ten thousand, one hundred twenty-one".