11021812102 has 16 divisors (see below), whose sum is σ = 18969818112. Its totient is φ = 4704813000.

The previous prime is 11021811989. The next prime is 11021812103. The reversal of 11021812102 is 20121812011.

It is a self number, because there is not a number n which added to its sum of digits gives 11021812102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021812103) 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, 1564758 + ... + 1571785.

It is an arithmetic number, because the mean of its divisors is an integer number (1185613632).

Almost surely, 2^11021812102 is an apocalyptic number.

11021812102 is a deficient number, since it is larger than the sum of its proper divisors (7948006010).

11021812102 is a wasteful number, since it uses less digits than its factorization.

11021812102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136803.

The product of its (nonzero) digits is 64, while the sum is 19.

Subtracting 11021812102 from its reverse (20121812011), we obtain a palindrome (9099999909).

The spelling of 11021812102 in words is "eleven billion, twenty-one million, eight hundred twelve thousand, one hundred two".