1111121120012 has 24 divisors (see below), whose sum is σ = 2046877887600. Its totient is φ = 526301032896.

The previous prime is 1111121119981. The next prime is 1111121120023. The reversal of 1111121120012 is 2100211211111.

It is a super-4 number, since 4×1111121120012⁴ (a number of 49 digits) contains 4444 as substring.

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, 1908914 + ... + 2422022.

It is an arithmetic number, because the mean of its divisors is an integer number (85286578650).

Almost surely, 2^{1111121120012} is an apocalyptic number.

It is an amenable number.

1111121120012 is a deficient number, since it is larger than the sum of its proper divisors (935756767588).

1111121120012 is a wasteful number, since it uses less digits than its factorization.

1111121120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541625 (or 541623 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111121120012 its reverse (2100211211111), we get a palindrome (3211332331123).

The spelling of 1111121120012 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twenty thousand, twelve".