2102122022220 has 72 divisors (see below), whose sum is σ = 6956112880080. Its totient is φ = 509605338240.

The previous prime is 2102122022213. The next prime is 2102122022237. The reversal of 2102122022220 is 222202212012.

2102122022220 is a `hidden beast` number, since 210 + 212 + 2 + 0 + 22 + 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 = 2102122022193 and 2102122022202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530836915 + ... + 530840874.

It is an arithmetic number, because the mean of its divisors is an integer number (96612678890).

Almost surely, 2^{2102122022220} is an apocalyptic number.

2102122022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102122022220 is an abundant number, since it is smaller than the sum of its proper divisors (4853990857860).

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

2102122022220 is a wasteful number, since it uses less digits than its factorization.

2102122022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061677815 (or 1061677810 counting only the distinct ones).

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

Adding to 2102122022220 its reverse (222202212012), we get a palindrome (2324324234232).

The spelling of 2102122022220 in words is "two trillion, one hundred two billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty".