2101222022 has 4 divisors (see below), whose sum is σ = 3151833036. Its totient is φ = 1050611010.

The previous prime is 2101222021. The next prime is 2101222031. The reversal of 2101222022 is 2202221012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2101221988 and 2101222006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525305504 + ... + 525305507.

It is an arithmetic number, because the mean of its divisors is an integer number (787958259).

Almost surely, 2^2101222022 is an apocalyptic number.

2101222022 is a deficient number, since it is larger than the sum of its proper divisors (1050611014).

2101222022 is a wasteful number, since it uses less digits than its factorization.

2101222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050611013.

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

The square root of 2101222022 is about 45839.0883635353. The cubic root of 2101222022 is about 1280.8275129978.

Adding to 2101222022 its reverse (2202221012), we get a palindrome (4303443034).

It can be divided in two parts, 21012 and 22022, that added together give a palindrome (43034).

The spelling of 2101222022 in words is "two billion, one hundred one million, two hundred twenty-two thousand, twenty-two".