222120102220220 has 12 divisors (see below), whose sum is σ = 466452214662504. Its totient is φ = 88848040888080.

The previous prime is 222120102220217. The next prime is 222120102220253. The reversal of 222120102220220 is 22022201021222.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 11106005111011 = 222120102220220 / (2 + 2 + 2 + 1 + 2 + 0 + 1 + 0 + 2 + 2 + 2 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 222120102220192 and 222120102220201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553002555486 + ... + 5553002555525.

It is an arithmetic number, because the mean of its divisors is an integer number (38871017888542).

Almost surely, 2^{222120102220220} is an apocalyptic number.

222120102220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120102220220 is an abundant number, since it is smaller than the sum of its proper divisors (244332112442284).

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

222120102220220 is a wasteful number, since it uses less digits than its factorization.

222120102220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106005111020 (or 11106005111018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222120102220220 its reverse (22022201021222), we get a palindrome (244142303241442).

The spelling of 222120102220220 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred two million, two hundred twenty thousand, two hundred twenty".