1011200111012 has 48 divisors (see below), whose sum is σ = 2180082761472. Its totient is φ = 399647053440.

The previous prime is 1011200110997. The next prime is 1011200111017. The reversal of 1011200111012 is 2101110021101.

It is a super-2 number, since 2×1011200111012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011200110984 and 1011200111002.

It is not an unprimeable number, because it can be changed into a prime (1011200111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971963 + ... + 1722530.

It is an arithmetic number, because the mean of its divisors is an integer number (45418390864).

Almost surely, 2^{1011200111012} is an apocalyptic number.

It is an amenable number.

1011200111012 is an abundant number, since it is smaller than the sum of its proper divisors (1168882650460).

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

1011200111012 is a wasteful number, since it uses less digits than its factorization.

1011200111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695548 (or 2695546 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011200111012 its reverse (2101110021101), we get a palindrome (3112310132113).

The spelling of 1011200111012 in words is "one trillion, eleven billion, two hundred million, one hundred eleven thousand, twelve".