222120101102220 has 72 divisors (see below), whose sum is σ = 676145099434896. Its totient is φ = 59022726498432.

The previous prime is 222120101102189. The next prime is 222120101102293. The reversal of 222120101102220 is 22201101021222.

It is a happy number.

222120101102220 is a `hidden beast` number, since 2 + 221 + 20 + 101 + 102 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 222120101102193 and 222120101102202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2180162067 + ... + 2180263946.

It is an arithmetic number, because the mean of its divisors is an integer number (9390904158818).

Almost surely, 2^{222120101102220} is an apocalyptic number.

222120101102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120101102220 is an abundant number, since it is smaller than the sum of its proper divisors (454024998332676).

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

222120101102220 is a wasteful number, since it uses less digits than its factorization.

222120101102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360426311 (or 4360426306 counting only the distinct ones).

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

Adding to 222120101102220 its reverse (22201101021222), we get a palindrome (244321202123442).

The spelling of 222120101102220 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred one million, one hundred two thousand, two hundred twenty".