1011121100200 has 24 divisors (see below), whose sum is σ = 2350856558430. Its totient is φ = 404448440000.

The previous prime is 1011121100147. The next prime is 1011121100239. The reversal of 1011121100200 is 20011211101.

It can be written as a sum of positive squares in 3 ways, for example, as 745387036164 + 265734064036 = 863358^2 + 515494^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2527802551 + ... + 2527802950.

Almost surely, 2^{1011121100200} is an apocalyptic number.

1011121100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011121100200 is an abundant number, since it is smaller than the sum of its proper divisors (1339735458230).

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

1011121100200 is a wasteful number, since it uses less digits than its factorization.

1011121100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055605517 (or 5055605508 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1011121100200 its reverse (20011211101), we get a palindrome (1031132311301).

The spelling of 1011121100200 in words is "one trillion, eleven billion, one hundred twenty-one million, one hundred thousand, two hundred".