42120214420 has 24 divisors (see below), whose sum is σ = 88458854400. Its totient is φ = 16846865952.

The previous prime is 42120214417. The next prime is 42120214469. The reversal of 42120214420 is 2441202124.

It is a super-2 number, since 2×42120214420² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42120214391 and 42120214400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238621 + ... + 375739.

It is an arithmetic number, because the mean of its divisors is an integer number (3685785600).

Almost surely, 2^42120214420 is an apocalyptic number.

It is an amenable number.

42120214420 is an abundant number, since it is smaller than the sum of its proper divisors (46338639980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42120214420 is a wasteful number, since it uses less digits than its factorization.

42120214420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152487 (or 152485 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 42120214420 its reverse (2441202124), we get a palindrome (44561416544).

The spelling of 42120214420 in words is "forty-two billion, one hundred twenty million, two hundred fourteen thousand, four hundred twenty".