42002004020220 has 36 divisors (see below), whose sum is σ = 127406078861880. Its totient is φ = 11200534405344.

The previous prime is 42002004020209. The next prime is 42002004020261. The reversal of 42002004020220 is 2202040020024.

42002004020220 is a `hidden beast` number, since 4 + 20 + 0 + 20 + 0 + 402 + 0 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 42002004020193 and 42002004020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116672233210 + ... + 116672233569.

Almost surely, 2^{42002004020220} is an apocalyptic number.

It is an amenable number.

42002004020220 is an abundant number, since it is smaller than the sum of its proper divisors (85404074841660).

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

42002004020220 is a wasteful number, since it uses less digits than its factorization.

42002004020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233344466794 (or 233344466789 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 42002004020220 its reverse (2202040020024), we get a palindrome (44204044040244).

The spelling of 42002004020220 in words is "forty-two trillion, two billion, four million, twenty thousand, two hundred twenty".