13111221102 has 32 divisors (see below), whose sum is σ = 30147973632. Its totient is φ = 3723629664.

The previous prime is 13111221091. The next prime is 13111221107. The reversal of 13111221102 is 20112211131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111221107) 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, 927633 + ... + 941660.

It is an arithmetic number, because the mean of its divisors is an integer number (942124176).

Almost surely, 2^13111221102 is an apocalyptic number.

13111221102 is an abundant number, since it is smaller than the sum of its proper divisors (17036752530).

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

13111221102 is a wasteful number, since it uses less digits than its factorization.

13111221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869472.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 13111221102 its reverse (20112211131), we get a palindrome (33223432233).

The spelling of 13111221102 in words is "thirteen billion, one hundred eleven million, two hundred twenty-one thousand, one hundred two".