11100210121 has 32 divisors (see below), whose sum is σ = 14970912768. Its totient is φ = 7948203840.

The previous prime is 11100210097. The next prime is 11100210127. The reversal of 11100210121 is 12101200111.

It is a cyclic number.

It is not a de Polignac number, because 11100210121 - 2¹¹ = 11100208073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100210098 and 11100210107.

It is not an unprimeable number, because it can be changed into a prime (11100210127) 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 31 ways as a sum of consecutive naturals, for example, 198360 + ... + 248086.

It is an arithmetic number, because the mean of its divisors is an integer number (467841024).

Almost surely, 2^11100210121 is an apocalyptic number.

11100210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11100210121 is a deficient number, since it is larger than the sum of its proper divisors (3870702647).

11100210121 is a wasteful number, since it uses less digits than its factorization.

11100210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49981.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11100210121 its reverse (12101200111), we get a palindrome (23201410232).

The spelling of 11100210121 in words is "eleven billion, one hundred million, two hundred ten thousand, one hundred twenty-one".