2111212120001 has 16 divisors (see below), whose sum is σ = 2123211138048. Its totient is φ = 2099253024000.

The previous prime is 2111212119971. The next prime is 2111212120007. The reversal of 2111212120001 is 1000212121112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111212120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111212120007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230703776 + ... + 230712926.

It is an arithmetic number, because the mean of its divisors is an integer number (132700696128).

Almost surely, 2^{2111212120001} is an apocalyptic number.

It is an amenable number.

2111212120001 is a deficient number, since it is larger than the sum of its proper divisors (11999018047).

2111212120001 is an equidigital number, since it uses as much as digits as its factorization.

2111212120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11192.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111212120001 its reverse (1000212121112), we get a palindrome (3111424241113).

The spelling of 2111212120001 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty thousand, one".