1011200211020 has 24 divisors (see below), whose sum is σ = 2125333917168. Its totient is φ = 404134660800.

The previous prime is 1011200211017. The next prime is 1011200211037. The reversal of 1011200211020 is 201120021101.

1011200211020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1011200210992 and 1011200211010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21564971 + ... + 21611810.

It is an arithmetic number, because the mean of its divisors is an integer number (88555579882).

Almost surely, 2^{1011200211020} is an apocalyptic number.

1011200211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011200211020 is an abundant number, since it is smaller than the sum of its proper divisors (1114133706148).

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

1011200211020 is a wasteful number, since it uses less digits than its factorization.

1011200211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43177961 (or 43177959 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1011200211020 its reverse (201120021101), we get a palindrome (1212320232121).

The spelling of 1011200211020 in words is "one trillion, eleven billion, two hundred million, two hundred eleven thousand, twenty".