42122222011 has 4 divisors (see below), whose sum is σ = 43953622992. Its totient is φ = 40290821032.

The previous prime is 42122221997. The next prime is 42122222017. The reversal of 42122222011 is 11022222124.

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 42122222011 - 2⁵ = 42122221979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42122222011.

It is not an unprimeable number, because it can be changed into a prime (42122222017) 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, 915700456 + ... + 915700501.

It is an arithmetic number, because the mean of its divisors is an integer number (10988405748).

Almost surely, 2^42122222011 is an apocalyptic number.

42122222011 is a deficient number, since it is larger than the sum of its proper divisors (1831400981).

42122222011 is a wasteful number, since it uses less digits than its factorization.

42122222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831400980.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 42122222011 its reverse (11022222124), we get a palindrome (53144444135).

The spelling of 42122222011 in words is "forty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, eleven".