11210111012121 has 16 divisors (see below), whose sum is σ = 17082126025728. Its totient is φ = 6405758182800.

The previous prime is 11210111012101. The next prime is 11210111012129. The reversal of 11210111012121 is 12121011101211.

It is not a de Polignac number, because 11210111012121 - 2⁷ = 11210111011993 is a prime.

It is a super-2 number, since 2×11210111012121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11210111012121.

It is not an unprimeable number, because it can be changed into a prime (11210111012129) 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, 8968636 + ... + 10141826.

It is an arithmetic number, because the mean of its divisors is an integer number (1067632876608).

Almost surely, 2^{11210111012121} is an apocalyptic number.

It is an amenable number.

11210111012121 is a deficient number, since it is larger than the sum of its proper divisors (5872015013607).

11210111012121 is a wasteful number, since it uses less digits than its factorization.

11210111012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628212.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11210111012121 its reverse (12121011101211), we get a palindrome (23331122113332).

The spelling of 11210111012121 in words is "eleven trillion, two hundred ten billion, one hundred eleven million, twelve thousand, one hundred twenty-one".