2021222122 has 16 divisors (see below), whose sum is σ = 3102717312. Its totient is φ = 987071680.

The previous prime is 2021222111. The next prime is 2021222149. The reversal of 2021222122 is 2212221202.

It is a junction number, because it is equal to n+sod(n) for n = 2021222096 and 2021222105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24258 + ... + 68050.

It is an arithmetic number, because the mean of its divisors is an integer number (193919832).

Almost surely, 2^2021222122 is an apocalyptic number.

2021222122 is a deficient number, since it is larger than the sum of its proper divisors (1081495190).

2021222122 is a wasteful number, since it uses less digits than its factorization.

2021222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44333.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2021222122 is about 44958.0039814937. The cubic root of 2021222122 is about 1264.3617462751.

Adding to 2021222122 its reverse (2212221202), we get a palindrome (4233443324).

The spelling of 2021222122 in words is "two billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".