2120012211211 has 4 divisors (see below), whose sum is σ = 2120027953624. Its totient is φ = 2119996468800.

The previous prime is 2120012211193. The next prime is 2120012211259. The reversal of 2120012211211 is 1121122100212.

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 2120012211211 - 2⁹ = 2120012210699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120012211281) 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, 7667445 + ... + 7939126.

It is an arithmetic number, because the mean of its divisors is an integer number (530006988406).

Almost surely, 2^{2120012211211} is an apocalyptic number.

2120012211211 is a deficient number, since it is larger than the sum of its proper divisors (15742413).

2120012211211 is a wasteful number, since it uses less digits than its factorization.

2120012211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15742412.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2120012211211 its reverse (1121122100212), we get a palindrome (3241134311423).

The spelling of 2120012211211 in words is "two trillion, one hundred twenty billion, twelve million, two hundred eleven thousand, two hundred eleven".