2102220120222 has 48 divisors (see below), whose sum is σ = 4678564094880. Its totient is φ = 681706259136.

The previous prime is 2102220120211. The next prime is 2102220120257. The reversal of 2102220120222 is 2220210222012.

2102220120222 is a `hidden beast` number, since 2 + 102 + 220 + 120 + 222 = 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 = 2102220120195 and 2102220120204.

It is a congruent number.

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, 4651863 + ... + 5083725.

It is an arithmetic number, because the mean of its divisors is an integer number (97470085310).

Almost surely, 2^{2102220120222} is an apocalyptic number.

2102220120222 is an abundant number, since it is smaller than the sum of its proper divisors (2576343974658).

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

2102220120222 is a wasteful number, since it uses less digits than its factorization.

2102220120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439217 (or 439214 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2102220120222 its reverse (2220210222012), we get a palindrome (4322430342234).

The spelling of 2102220120222 in words is "two trillion, one hundred two billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty-two".