220121022220112 has 40 divisors (see below), whose sum is σ = 459372662267904. Its totient is φ = 101576249771904.

The previous prime is 220121022220109. The next prime is 220121022220181. The reversal of 220121022220112 is 211022220121022.

It is a super-3 number, since 3×220121022220112³ (a number of 44 digits) contains 333 as substring.

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, 92932688 + ... + 95271855.

Almost surely, 2^{220121022220112} is an apocalyptic number.

It is an amenable number.

220121022220112 is an abundant number, since it is smaller than the sum of its proper divisors (239251640047792).

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

220121022220112 is a wasteful number, since it uses less digits than its factorization.

220121022220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188210187 (or 188210181 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220121022220112 its reverse (211022220121022), we get a palindrome (431143242341134).

The spelling of 220121022220112 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred twelve".