11211110010121 has 16 divisors (see below), whose sum is σ = 13264781466240. Its totient is φ = 9270972990720.

The previous prime is 11211110010091. The next prime is 11211110010209. The reversal of 11211110010121 is 12101001111211.

It is a de Polignac number, because none of the positive numbers 2^k-11211110010121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211110910121) 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 15 ways as a sum of consecutive naturals, for example, 21127216 + ... + 21651361.

It is an arithmetic number, because the mean of its divisors is an integer number (829048841640).

Almost surely, 2^{11211110010121} is an apocalyptic number.

It is an amenable number.

11211110010121 is a deficient number, since it is larger than the sum of its proper divisors (2053671456119).

11211110010121 is a wasteful number, since it uses less digits than its factorization.

11211110010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42779904.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11211110010121 its reverse (12101001111211), we get a palindrome (23312111121332).

The spelling of 11211110010121 in words is "eleven trillion, two hundred eleven billion, one hundred ten million, ten thousand, one hundred twenty-one".