1011100120012 has 6 divisors (see below), whose sum is σ = 1769425210028. Its totient is φ = 505550060004.

The previous prime is 1011100120007. The next prime is 1011100120013. The reversal of 1011100120012 is 2100210011101.

It is not an unprimeable number, because it can be changed into a prime (1011100120013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126387514998 + ... + 126387515005.

Almost surely, 2^{1011100120012} is an apocalyptic number.

It is an amenable number.

1011100120012 is a deficient number, since it is larger than the sum of its proper divisors (758325090016).

1011100120012 is a wasteful number, since it uses less digits than its factorization.

1011100120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252775030007 (or 252775030005 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1011100120012 its reverse (2100210011101), we get a palindrome (3111310131113).

The spelling of 1011100120012 in words is "one trillion, eleven billion, one hundred million, one hundred twenty thousand, twelve".