11110001202121 has 16 divisors (see below), whose sum is σ = 11599321219200. Its totient is φ = 10621205844480.

The previous prime is 11110001202101. The next prime is 11110001202149. The reversal of 11110001202121 is 12120210001111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11110001202121 - 2¹⁵ = 11110001169353 is a prime.

It is a super-2 number, since 2×11110001202121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11110001202101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395373730 + ... + 395401828.

It is an arithmetic number, because the mean of its divisors is an integer number (724957576200).

Almost surely, 2^{11110001202121} is an apocalyptic number.

It is an amenable number.

11110001202121 is a deficient number, since it is larger than the sum of its proper divisors (489320017079).

11110001202121 is a wasteful number, since it uses less digits than its factorization.

11110001202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36816.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11110001202121 its reverse (12120210001111), we get a palindrome (23230211203232).

The spelling of 11110001202121 in words is "eleven trillion, one hundred ten billion, one million, two hundred two thousand, one hundred twenty-one".