11202121202 has 16 divisors (see below), whose sum is σ = 17796344760. Its totient is φ = 5270181888.

The previous prime is 11202121201. The next prime is 11202121211. The reversal of 11202121202 is 20212120211.

It can be written as a sum of positive squares in 4 ways, for example, as 8854621801 + 2347499401 = 94099^2 + 48451^2 .

It is not an unprimeable number, because it can be changed into a prime (11202121201) 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, 91658 + ... + 175514.

Almost surely, 2^11202121202 is an apocalyptic number.

11202121202 is a deficient number, since it is larger than the sum of its proper divisors (6594223558).

11202121202 is a wasteful number, since it uses less digits than its factorization.

11202121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87805.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11202121202 its reverse (20212120211), we get a palindrome (31414241413).

Subtracting 11202121202 from its reverse (20212120211), we obtain a palindrome (9009999009).

It can be divided in two parts, 11 and 202121202, that multiplied together give a palindrome (2223333222).

The spelling of 11202121202 in words is "eleven billion, two hundred two million, one hundred twenty-one thousand, two hundred two".