220002120122004 has 36 divisors (see below), whose sum is σ = 606672513064800. Its totient is φ = 66667309127760.

The previous prime is 220002120121909. The next prime is 220002120122009. The reversal of 220002120122004 is 400221021200022.

220002120122004 is a `hidden beast` number, since 220 + 0 + 0 + 21 + 201 + 220 + 0 + 4 = 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (220002120122009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277780454304 + ... + 277780455095.

It is an arithmetic number, because the mean of its divisors is an integer number (16852014251800).

Almost surely, 2^{220002120122004} is an apocalyptic number.

It is an amenable number.

220002120122004 is an abundant number, since it is smaller than the sum of its proper divisors (386670392942796).

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

220002120122004 is a wasteful number, since it uses less digits than its factorization.

220002120122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555560909420 (or 555560909415 counting only the distinct ones).

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

Adding to 220002120122004 its reverse (400221021200022), we get a palindrome (620223141322026).

The spelling of 220002120122004 in words is "two hundred twenty trillion, two billion, one hundred twenty million, one hundred twenty-two thousand, four".