11021021200 has 90 divisors (see below), whose sum is σ = 30800997546. Its totient is φ = 3778629120.

The previous prime is 11021021183. The next prime is 11021021233. The reversal of 11021021200 is 212012011.

It can be written as a sum of positive squares in 3 ways, for example, as 3467325456 + 7553695744 = 58884^2 + 86912^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 261549 + ... + 300748.

Almost surely, 2^11021021200 is an apocalyptic number.

11021021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021021200 is an abundant number, since it is smaller than the sum of its proper divisors (19779976346).

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

11021021200 is a wasteful number, since it uses less digits than its factorization.

11021021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562329 (or 562311 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11021021200 its reverse (212012011), we get a palindrome (11233033211).

The spelling of 11021021200 in words is "eleven billion, twenty-one million, twenty-one thousand, two hundred".