2122102220 has 48 divisors (see below), whose sum is σ = 5095695360. Its totient is φ = 727199424.

The previous prime is 2122102219. The next prime is 2122102237. The reversal of 2122102220 is 222012212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2122102195 and 2122102204.

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, 462377 + ... + 466943.

It is an arithmetic number, because the mean of its divisors is an integer number (106160320).

Almost surely, 2^2122102220 is an apocalyptic number.

2122102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122102220 is an abundant number, since it is smaller than the sum of its proper divisors (2973593140).

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

2122102220 is a wasteful number, since it uses less digits than its factorization.

2122102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902 (or 7900 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2122102220 is about 46066.2807267963. The cubic root of 2122102220 is about 1285.0561366766.

Adding to 2122102220 its reverse (222012212), we get a palindrome (2344114432).

The spelling of 2122102220 in words is "two billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty".