220121022220110 has 96 divisors (see below), whose sum is σ = 627792673828320. Its totient is φ = 53067850617600.

The previous prime is 220121022220109. The next prime is 220121022220181. The reversal of 220121022220110 is 11022220121022.

It is a happy number.

220121022220110 is a `hidden beast` number, since 2 + 20 + 1 + 210 + 222 + 201 + 10 = 666.

220121022220110 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 614032045 + ... + 614390424.

It is an arithmetic number, because the mean of its divisors is an integer number (6539507019045).

Almost surely, 2^{220121022220110} is an apocalyptic number.

220121022220110 is an abundant number, since it is smaller than the sum of its proper divisors (407671651608210).

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

220121022220110 is a wasteful number, since it uses less digits than its factorization.

220121022220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228422674 (or 1228422671 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220121022220110 its reverse (11022220121022), we get a palindrome (231143242341132).

The spelling of 220121022220110 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred ten".