20120210001111 has 32 divisors (see below), whose sum is σ = 29826672099840. Its totient is φ = 11962568592000.

The previous prime is 20120210001103. The next prime is 20120210001119. The reversal of 20120210001111 is 11110001202102.

It is an interprime number because it is at equal distance from previous prime (20120210001103) and next prime (20120210001119).

It is not a de Polignac number, because 20120210001111 - 2³ = 20120210001103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120210001119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27327835 + ... + 28054428.

It is an arithmetic number, because the mean of its divisors is an integer number (932083503120).

Almost surely, 2^{20120210001111} is an apocalyptic number.

20120210001111 is a deficient number, since it is larger than the sum of its proper divisors (9706462098729).

20120210001111 is a wasteful number, since it uses less digits than its factorization.

20120210001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55382487.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20120210001111 its reverse (11110001202102), we get a palindrome (31230211203213).

The spelling of 20120210001111 in words is "twenty trillion, one hundred twenty billion, two hundred ten million, one thousand, one hundred eleven".