1121011111012 has 48 divisors (see below), whose sum is σ = 2139003538560. Its totient is φ = 510946990848.

The previous prime is 1121011111009. The next prime is 1121011111021. The reversal of 1121011111012 is 2101111101211.

It is a super-2 number, since 2×1121011111012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1121011110983 and 1121011111001.

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 15 ways as a sum of consecutive naturals, for example, 10751064 + ... + 10854832.

It is an arithmetic number, because the mean of its divisors is an integer number (44562573720).

Almost surely, 2^{1121011111012} is an apocalyptic number.

It is an amenable number.

1121011111012 is a deficient number, since it is larger than the sum of its proper divisors (1017992427548).

1121011111012 is a wasteful number, since it uses less digits than its factorization.

1121011111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106372 (or 106370 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1121011111012 its reverse (2101111101211), we get a palindrome (3222122212223).

It can be divided in two parts, 11 and 21011111012, that multiplied together give a palindrome (231122221132).

The spelling of 1121011111012 in words is "one trillion, one hundred twenty-one billion, eleven million, one hundred eleven thousand, twelve".