1012200100011 has 40 divisors (see below), whose sum is σ = 1531645150464. Its totient is φ = 666098192880.

The previous prime is 1012200100007. The next prime is 1012200100013. The reversal of 1012200100011 is 1100010022101.

It is a happy number.

It is not a de Polignac number, because 1012200100011 - 2² = 1012200100007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1012200099966 and 1012200100002.

It is not an unprimeable number, because it can be changed into a prime (1012200100013) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2399620 + ... + 2789726.

Almost surely, 2^{1012200100011} is an apocalyptic number.

1012200100011 is a deficient number, since it is larger than the sum of its proper divisors (519445050453).

1012200100011 is a wasteful number, since it uses less digits than its factorization.

1012200100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390533 (or 390524 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012200100011 its reverse (1100010022101), we get a palindrome (2112210122112).

The spelling of 1012200100011 in words is "one trillion, twelve billion, two hundred million, one hundred thousand, eleven".