2120001100011 has 12 divisors (see below), whose sum is σ = 3066301349280. Its totient is φ = 1411452126000.

The previous prime is 2120001099989. The next prime is 2120001100039. The reversal of 2120001100011 is 1100011000212.

It is a happy number.

It is not a de Polignac number, because 2120001100011 - 2¹⁰ = 2120001098987 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 = 2120001099966 and 2120001100002.

It is not an unprimeable number, because it can be changed into a prime (2120001120011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156821256 + ... + 156834773.

It is an arithmetic number, because the mean of its divisors is an integer number (255525112440).

Almost surely, 2^{2120001100011} is an apocalyptic number.

2120001100011 is a deficient number, since it is larger than the sum of its proper divisors (946300249269).

2120001100011 is a wasteful number, since it uses less digits than its factorization.

2120001100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313656786 (or 313656783 counting only the distinct ones).

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

Adding to 2120001100011 its reverse (1100011000212), we get a palindrome (3220012100223).

The spelling of 2120001100011 in words is "two trillion, one hundred twenty billion, one million, one hundred thousand, eleven".