2212012023511 has 4 divisors (see below), whose sum is σ = 2218694839624. Its totient is φ = 2205329207400.

The previous prime is 2212012023497. The next prime is 2212012023527. The reversal of 2212012023511 is 1153202102122.

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 2212012023511 - 2⁷ = 2212012023383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212012020511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3341407560 + ... + 3341408221.

It is an arithmetic number, because the mean of its divisors is an integer number (554673709906).

Almost surely, 2^{2212012023511} is an apocalyptic number.

2212012023511 is a deficient number, since it is larger than the sum of its proper divisors (6682816113).

2212012023511 is an equidigital number, since it uses as much as digits as its factorization.

2212012023511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682816112.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 2212012023511 its reverse (1153202102122), we get a palindrome (3365214125633).

The spelling of 2212012023511 in words is "two trillion, two hundred twelve billion, twelve million, twenty-three thousand, five hundred eleven".