2021121122222 has 8 divisors (see below), whose sum is σ = 3031922541000. Its totient is φ = 1010480275224.

The previous prime is 2021121122221. The next prime is 2021121122263. The reversal of 2021121122222 is 2222211211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2021121122194 and 2021121122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021121122221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40111472 + ... + 40161827.

It is an arithmetic number, because the mean of its divisors is an integer number (378990317625).

Almost surely, 2^{2021121122222} is an apocalyptic number.

2021121122222 is a deficient number, since it is larger than the sum of its proper divisors (1010801418778).

2021121122222 is a wasteful number, since it uses less digits than its factorization.

2021121122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80285890.

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

Adding to 2021121122222 its reverse (2222211211202), we get a palindrome (4243332333424).

The spelling of 2021121122222 in words is "two trillion, twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".