12011121102 has 16 divisors (see below), whose sum is σ = 24084000720. Its totient is φ = 3993413952.

The previous prime is 12011121097. The next prime is 12011121103. The reversal of 12011121102 is 20112111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011121103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2570743 + ... + 2575410.

It is an arithmetic number, because the mean of its divisors is an integer number (1505250045).

Almost surely, 2^12011121102 is an apocalyptic number.

12011121102 is an abundant number, since it is smaller than the sum of its proper divisors (12072879618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011121102 is a wasteful number, since it uses less digits than its factorization.

12011121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146547.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12011121102 its reverse (20112111021), we get a palindrome (32123232123).

The spelling of 12011121102 in words is "twelve billion, eleven million, one hundred twenty-one thousand, one hundred two".