11120011212121 has 6 divisors (see below), whose sum is σ = 12935523246810. Its totient is φ = 9531438181776.

The previous prime is 11120011212103. The next prime is 11120011212137. The reversal of 11120011212121 is 12121211002111.

It can be written as a sum of positive squares in only one way, i.e., 11095694240400 + 24316971721 = 3331020^2 + 155939^2 .

It is not a de Polignac number, because 11120011212121 - 2¹³ = 11120011203929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120011212095 and 11120011212104.

It is not an unprimeable number, because it can be changed into a prime (11120011212721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113469502116 + ... + 113469502213.

It is an arithmetic number, because the mean of its divisors is an integer number (2155920541135).

Almost surely, 2^{11120011212121} is an apocalyptic number.

It is an amenable number.

11120011212121 is a deficient number, since it is larger than the sum of its proper divisors (1815512034689).

11120011212121 is an equidigital number, since it uses as much as digits as its factorization.

11120011212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226939004343 (or 226939004336 counting only the distinct ones).

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

Adding to 11120011212121 its reverse (12121211002111), we get a palindrome (23241222214232).

The spelling of 11120011212121 in words is "eleven trillion, one hundred twenty billion, eleven million, two hundred twelve thousand, one hundred twenty-one".