11111120202 has 128 divisors (see below), whose sum is σ = 29742902784. Its totient is φ = 2683404288.

The previous prime is 11111120197. The next prime is 11111120213. The reversal of 11111120202 is 20202111111.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327258 + ... + 359610.

It is an arithmetic number, because the mean of its divisors is an integer number (232366428).

Almost surely, 2^11111120202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11111120202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14871451392).

11111120202 is an abundant number, since it is smaller than the sum of its proper divisors (18631782582).

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

11111120202 is a wasteful number, since it uses less digits than its factorization.

11111120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32432.

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

Adding to 11111120202 its reverse (20202111111), we get a palindrome (31313231313).

Subtracting 11111120202 from its reverse (20202111111), we obtain a palindrome (9090990909).

It can be divided in two parts, 111111 and 20202, that multiplied together give a palindrome (2244664422).

The spelling of 11111120202 in words is "eleven billion, one hundred eleven million, one hundred twenty thousand, two hundred two".