20020010123220 has 24 divisors (see below), whose sum is σ = 56056028345184. Its totient is φ = 5338669366176.

The previous prime is 20020010123189. The next prime is 20020010123291. The reversal of 20020010123220 is 2232101002002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20020010123220.

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, 166833417634 + ... + 166833417753.

It is an arithmetic number, because the mean of its divisors is an integer number (2335667847716).

Almost surely, 2^{20020010123220} is an apocalyptic number.

20020010123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020010123220 is an abundant number, since it is smaller than the sum of its proper divisors (36036018221964).

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

20020010123220 is a wasteful number, since it uses less digits than its factorization.

20020010123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333666835399 (or 333666835397 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20020010123220 its reverse (2232101002002), we get a palindrome (22252111125222).

The spelling of 20020010123220 in words is "twenty trillion, twenty billion, ten million, one hundred twenty-three thousand, two hundred twenty".