1101210121012 has 12 divisors (see below), whose sum is σ = 1927151022916. Its totient is φ = 550595543040.

The previous prime is 1101210121001. The next prime is 1101210121049. The reversal of 1101210121012 is 2101210121011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 885657916836 + 215552204176 = 941094^2 + 464276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1101210120983 and 1101210121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2115789 + ... + 2584372.

Almost surely, 2^{1101210121012} is an apocalyptic number.

It is an amenable number.

1101210121012 is a deficient number, since it is larger than the sum of its proper divisors (825940901904).

1101210121012 is a wasteful number, since it uses less digits than its factorization.

1101210121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758738 (or 4758736 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1101210121012 its reverse (2101210121011), we get a palindrome (3202420242023).

Subtracting 1101210121012 from its reverse (2101210121011), we obtain a palindrome (999999999999).

The spelling of 1101210121012 in words is "one trillion, one hundred one billion, two hundred ten million, one hundred twenty-one thousand, twelve".