11103201210121 has 16 divisors (see below), whose sum is σ = 11886753124800. Its totient is φ = 10339598937600.

The previous prime is 11103201210071. The next prime is 11103201210139. The reversal of 11103201210121 is 12101210230111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11103201210121 - 2¹³ = 11103201201929 is a prime.

It is a super-2 number, since 2×11103201210121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11103201210095 and 11103201210104.

It is not an unprimeable number, because it can be changed into a prime (11103201210161) 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, 12067761 + ... + 12955201.

It is an arithmetic number, because the mean of its divisors is an integer number (742922070300).

Almost surely, 2^{11103201210121} is an apocalyptic number.

It is an amenable number.

11103201210121 is a deficient number, since it is larger than the sum of its proper divisors (783551914679).

11103201210121 is a wasteful number, since it uses less digits than its factorization.

11103201210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898680.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11103201210121 its reverse (12101210230111), we get a palindrome (23204411440232).

The spelling of 11103201210121 in words is "eleven trillion, one hundred three billion, two hundred one million, two hundred ten thousand, one hundred twenty-one".