11202121112 has 64 divisors (see below), whose sum is σ = 26975047680. Its totient is φ = 4238923392.

The previous prime is 11202121103. The next prime is 11202121163. The reversal of 11202121112 is 21112120211.

It is a super-2 number, since 2×11202121112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317768 + ... + 351255.

It is an arithmetic number, because the mean of its divisors is an integer number (421485120).

Almost surely, 2^11202121112 is an apocalyptic number.

It is an amenable number.

11202121112 is an abundant number, since it is smaller than the sum of its proper divisors (15772926568).

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

11202121112 is a wasteful number, since it uses less digits than its factorization.

11202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669072 (or 669068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11202121112 its reverse (21112120211), we get a palindrome (32314241323).

Subtracting 11202121112 from its reverse (21112120211), we obtain a palindrome (9909999099).

The spelling of 11202121112 in words is "eleven billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".