220121020323320 has 16 divisors (see below), whose sum is σ = 495272295727560. Its totient is φ = 88048408129312.

The previous prime is 220121020323317. The next prime is 220121020323349. The reversal of 220121020323320 is 23323020121022.

It is a super-4 number, since 4×220121020323320⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2751512754002 + ... + 2751512754081.

Almost surely, 2^{220121020323320} is an apocalyptic number.

220121020323320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220121020323320 is an abundant number, since it is smaller than the sum of its proper divisors (275151275404240).

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

220121020323320 is a wasteful number, since it uses less digits than its factorization.

220121020323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503025508094 (or 5503025508090 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 220121020323320 its reverse (23323020121022), we get a palindrome (243444040444342).

The spelling of 220121020323320 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty million, three hundred twenty-three thousand, three hundred twenty".