42120220410 has 48 divisors (see below), whose sum is σ = 109704497760. Its totient is φ = 11212374240.

The previous prime is 42120220403. The next prime is 42120220447. The reversal of 42120220410 is 1402202124.

42120220410 is a `hidden beast` number, since 421 + 20 + 220 + 4 + 1 + 0 = 666.

It is a super-2 number, since 2×42120220410² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358420 + ... + 461199.

It is an arithmetic number, because the mean of its divisors is an integer number (2285510370).

Almost surely, 2^42120220410 is an apocalyptic number.

42120220410 is an abundant number, since it is smaller than the sum of its proper divisors (67584277350).

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

42120220410 is a wasteful number, since it uses less digits than its factorization.

42120220410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820203 (or 820200 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 42120220410 its reverse (1402202124), we get a palindrome (43522422534).

The spelling of 42120220410 in words is "forty-two billion, one hundred twenty million, two hundred twenty thousand, four hundred ten".