42120211224011 has 2 divisors, whose sum is σ = 42120211224012. Its totient is φ = 42120211224010.

The previous prime is 42120211223969. The next prime is 42120211224031. The reversal of 42120211224011 is 11042211202124.

42120211224011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42120211224011 - 2¹⁸ = 42120210961867 is a prime.

It is a super-2 number, since 2×42120211224011² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42120211224031) 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 as a sum of consecutive naturals, namely, 21060105612005 + 21060105612006.

It is an arithmetic number, because the mean of its divisors is an integer number (21060105612006).

Almost surely, 2^{42120211224011} is an apocalyptic number.

42120211224011 is a deficient number, since it is larger than the sum of its proper divisors (1).

42120211224011 is an equidigital number, since it uses as much as digits as its factorization.

42120211224011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 42120211224011 its reverse (11042211202124), we get a palindrome (53162422426135).

The spelling of 42120211224011 in words is "forty-two trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-four thousand, eleven".