42120220411 has 4 divisors (see below), whose sum is σ = 42713463024. Its totient is φ = 41526977800.

The previous prime is 42120220403. The next prime is 42120220447. The reversal of 42120220411 is 11402202124.

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 42120220411 - 2³ = 42120220403 is a prime.

It is a super-2 number, since 2×42120220411² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42120220451) 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 3 ways as a sum of consecutive naturals, for example, 296621200 + ... + 296621341.

It is an arithmetic number, because the mean of its divisors is an integer number (10678365756).

Almost surely, 2^42120220411 is an apocalyptic number.

42120220411 is a deficient number, since it is larger than the sum of its proper divisors (593242613).

42120220411 is an equidigital number, since it uses as much as digits as its factorization.

42120220411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593242612.

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

Adding to 42120220411 its reverse (11402202124), we get a palindrome (53522422535).

The spelling of 42120220411 in words is "forty-two billion, one hundred twenty million, two hundred twenty thousand, four hundred eleven".