42155240022 has 56 divisors (see below), whose sum is σ = 108349649616. Its totient is φ = 12044351376.

The previous prime is 42155240003. The next prime is 42155240059. The reversal of 42155240022 is 22004255124.

42155240022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42155240022² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2055013 + ... + 2075424.

Almost surely, 2^42155240022 is an apocalyptic number.

42155240022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42155240022 is an abundant number, since it is smaller than the sum of its proper divisors (66194409594).

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

42155240022 is an equidigital number, since it uses as much as digits as its factorization.

42155240022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130464 (or 4130449 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 42155240022 its reverse (22004255124), we get a palindrome (64159495146).

The spelling of 42155240022 in words is "forty-two billion, one hundred fifty-five million, two hundred forty thousand, twenty-two".