1100121202012 has 48 divisors (see below), whose sum is σ = 2238349720320. Its totient is φ = 463320484992.

The previous prime is 1100121202009. The next prime is 1100121202013. The reversal of 1100121202012 is 2102021210011.

It is a junction number, because it is equal to n+sod(n) for n = 1100121201983 and 1100121202001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100121202013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4467703 + ... + 4707505.

It is an arithmetic number, because the mean of its divisors is an integer number (46632285840).

Almost surely, 2^{1100121202012} is an apocalyptic number.

It is an amenable number.

1100121202012 is an abundant number, since it is smaller than the sum of its proper divisors (1138228518308).

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

1100121202012 is a wasteful number, since it uses less digits than its factorization.

1100121202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242650 (or 242648 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1100121202012 its reverse (2102021210011), we get a palindrome (3202142412023).

The spelling of 1100121202012 in words is "one trillion, one hundred billion, one hundred twenty-one million, two hundred two thousand, twelve".