2120001210011 has 4 divisors (see below), whose sum is σ = 2121040938000. Its totient is φ = 2118961482024.

The previous prime is 2120001210001. The next prime is 2120001210013. The reversal of 2120001210011 is 1100121000212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120001210011 - 2¹⁴ = 2120001193627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120001209974 and 2120001210001.

It is not an unprimeable number, because it can be changed into a prime (2120001210013) 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, 519860936 + ... + 519865013.

It is an arithmetic number, because the mean of its divisors is an integer number (530260234500).

Almost surely, 2^{2120001210011} is an apocalyptic number.

2120001210011 is a deficient number, since it is larger than the sum of its proper divisors (1039727989).

2120001210011 is a wasteful number, since it uses less digits than its factorization.

2120001210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039727988.

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

Adding to 2120001210011 its reverse (1100121000212), we get a palindrome (3220122210223).

The spelling of 2120001210011 in words is "two trillion, one hundred twenty billion, one million, two hundred ten thousand, eleven".