220121001110112 has 48 divisors (see below), whose sum is σ = 578002767319152. Its totient is φ = 73350157271040.

The previous prime is 220121001109993. The next prime is 220121001110123. The reversal of 220121001110112 is 211011100121022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 220121001110091 and 220121001110100.

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, 367038913 + ... + 367638144.

It is an arithmetic number, because the mean of its divisors is an integer number (12041724319149).

Almost surely, 2^{220121001110112} is an apocalyptic number.

It is an amenable number.

220121001110112 is an abundant number, since it is smaller than the sum of its proper divisors (357881766209040).

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

220121001110112 is a wasteful number, since it uses less digits than its factorization.

220121001110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734680191 (or 734680183 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 220121001110112 its reverse (211011100121022), we get a palindrome (431132101231134).

The spelling of 220121001110112 in words is "two hundred twenty trillion, one hundred twenty-one billion, one million, one hundred ten thousand, one hundred twelve".