220120122100220 has 48 divisors (see below), whose sum is σ = 465321300393600. Its totient is φ = 87465270520320.

The previous prime is 220120122100189. The next prime is 220120122100223. The reversal of 220120122100220 is 22001221021022.

It is a happy number.

It is a super-2 number, since 2×220120122100220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120122100223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54341111 + ... + 58251150.

It is an arithmetic number, because the mean of its divisors is an integer number (9694193758200).

Almost surely, 2^{220120122100220} is an apocalyptic number.

220120122100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120122100220 is an abundant number, since it is smaller than the sum of its proper divisors (245201178293380).

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

220120122100220 is a wasteful number, since it uses less digits than its factorization.

220120122100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112592918 (or 112592916 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220120122100220 its reverse (22001221021022), we get a palindrome (242121343121242).

The spelling of 220120122100220 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty-two million, one hundred thousand, two hundred twenty".