2021122112222 has 32 divisors (see below), whose sum is σ = 3070414330560. Its totient is φ = 997711187200.

The previous prime is 2021122112161. The next prime is 2021122112249. The reversal of 2021122112222 is 2222112211202.

It is a junction number, because it is equal to n+sod(n) for n = 2021122112194 and 2021122112203.

It is a congruent number.

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, 125738378 + ... + 125754450.

It is an arithmetic number, because the mean of its divisors is an integer number (95950447830).

Almost surely, 2^{2021122112222} is an apocalyptic number.

2021122112222 is a deficient number, since it is larger than the sum of its proper divisors (1049292218338).

2021122112222 is a wasteful number, since it uses less digits than its factorization.

2021122112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17908.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2021122112222 its reverse (2222112211202), we get a palindrome (4243234323424).

The spelling of 2021122112222 in words is "two trillion, twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".