1100002121012 has 12 divisors (see below), whose sum is σ = 1925032430916. Its totient is φ = 549992855040.

The previous prime is 1100002120993. The next prime is 1100002121017. The reversal of 1100002121012 is 2101212000011.

It can be written as a sum of positive squares in 2 ways, for example, as 1005535639696 + 94466481316 = 1002764^2 + 307354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1100002120984 and 1100002121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100002121017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1744643 + ... + 2289930.

It is an arithmetic number, because the mean of its divisors is an integer number (160419369243).

Almost surely, 2^{1100002121012} is an apocalyptic number.

It is an amenable number.

1100002121012 is a deficient number, since it is larger than the sum of its proper divisors (825030309904).

1100002121012 is a wasteful number, since it uses less digits than its factorization.

1100002121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102738 (or 4102736 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100002121012 its reverse (2101212000011), we get a palindrome (3201214121023).

The spelling of 1100002121012 in words is "one trillion, one hundred billion, two million, one hundred twenty-one thousand, twelve".