222122100112220 has 48 divisors (see below), whose sum is σ = 581556043934208. Its totient is φ = 69232862372160.

The previous prime is 222122100112217. The next prime is 222122100112259. The reversal of 222122100112220 is 22211001221222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222122100112192 and 222122100112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72117563432 + ... + 72117566511.

It is an arithmetic number, because the mean of its divisors is an integer number (12115750915296).

Almost surely, 2^{222122100112220} is an apocalyptic number.

222122100112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122100112220 is an abundant number, since it is smaller than the sum of its proper divisors (359433943821988).

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

222122100112220 is a wasteful number, since it uses less digits than its factorization.

222122100112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144235129970 (or 144235129968 counting only the distinct ones).

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

Adding to 222122100112220 its reverse (22211001221222), we get a palindrome (244333101333442).

The spelling of 222122100112220 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred million, one hundred twelve thousand, two hundred twenty".