2105022220 has 48 divisors (see below), whose sum is σ = 5104169280. Its totient is φ = 714276864.

The previous prime is 2105022211. The next prime is 2105022223. The reversal of 2105022220 is 222205012.

It is a super-2 number, since 2×2105022220² = 8862237093387456800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2105022194 and 2105022203.

It is not an unprimeable number, because it can be changed into a prime (2105022223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63925 + ... + 91084.

It is an arithmetic number, because the mean of its divisors is an integer number (106336860).

Almost surely, 2^2105022220 is an apocalyptic number.

2105022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105022220 is an abundant number, since it is smaller than the sum of its proper divisors (2999147060).

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

2105022220 is a wasteful number, since it uses less digits than its factorization.

2105022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155122 (or 155120 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2105022220 is about 45880.5211391501. The cubic root of 2105022220 is about 1281.5992015217.

Adding to 2105022220 its reverse (222205012), we get a palindrome (2327227232).

The spelling of 2105022220 in words is "two billion, one hundred five million, twenty-two thousand, two hundred twenty".