11200021012 has 6 divisors (see below), whose sum is σ = 19600036778. Its totient is φ = 5600010504.

The previous prime is 11200020977. The next prime is 11200021033. The reversal of 11200021012 is 21012000211.

It can be written as a sum of positive squares in only one way, i.e., 5765972356 + 5434048656 = 75934^2 + 73716^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11200021012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400002623 + ... + 1400002630.

Almost surely, 2^11200021012 is an apocalyptic number.

It is an amenable number.

11200021012 is a deficient number, since it is larger than the sum of its proper divisors (8400015766).

11200021012 is a wasteful number, since it uses less digits than its factorization.

11200021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800005257 (or 2800005255 counting only the distinct ones).

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

Adding to 11200021012 its reverse (21012000211), we get a palindrome (32212021223).

The spelling of 11200021012 in words is "eleven billion, two hundred million, twenty-one thousand, twelve".