2021222122222 has 32 divisors (see below), whose sum is σ = 3113756886240. Its totient is φ = 983431188480.

The previous prime is 2021222122103. The next prime is 2021222122247. The reversal of 2021222122222 is 2222212221202.

It is a junction number, because it is equal to n+sod(n) for n = 2021222122193 and 2021222122202.

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, 155795728 + ... + 155808700.

It is an arithmetic number, because the mean of its divisors is an integer number (97304902695).

Almost surely, 2^{2021222122222} is an apocalyptic number.

2021222122222 is a deficient number, since it is larger than the sum of its proper divisors (1092534764018).

2021222122222 is a wasteful number, since it uses less digits than its factorization.

2021222122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17748.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2021222122222 its reverse (2222212221202), we get a palindrome (4243434343424).

The spelling of 2021222122222 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".