12111022102101 has 32 divisors (see below), whose sum is σ = 17509371105408. Its totient is φ = 7401966001920.

The previous prime is 12111022102033. The next prime is 12111022102121. The reversal of 12111022102101 is 10120122011121.

It is a happy number.

It is not a de Polignac number, because 12111022102101 - 2⁹ = 12111022101589 is a prime.

It is a super-2 number, since 2×12111022102101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111022102121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4210450 + ... + 6476876.

It is an arithmetic number, because the mean of its divisors is an integer number (547167847044).

Almost surely, 2^{12111022102101} is an apocalyptic number.

It is an amenable number.

12111022102101 is a deficient number, since it is larger than the sum of its proper divisors (5398349003307).

12111022102101 is a wasteful number, since it uses less digits than its factorization.

12111022102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267381.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111022102101 its reverse (10120122011121), we get a palindrome (22231144113222).

The spelling of 12111022102101 in words is "twelve trillion, one hundred eleven billion, twenty-two million, one hundred two thousand, one hundred one".