2021222022211 has 16 divisors (see below), whose sum is σ = 2443420629504. Its totient is φ = 1634450266944.

The previous prime is 2021222022203. The next prime is 2021222022229. The reversal of 2021222022211 is 1122202221202.

It is a cyclic number.

It is not a de Polignac number, because 2021222022211 - 2³ = 2021222022203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021222022271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85975741 + ... + 85999246.

It is an arithmetic number, because the mean of its divisors is an integer number (152713789344).

Almost surely, 2^{2021222022211} is an apocalyptic number.

2021222022211 is a deficient number, since it is larger than the sum of its proper divisors (422198607293).

2021222022211 is a wasteful number, since it uses less digits than its factorization.

2021222022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171975090.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2021222022211 its reverse (1122202221202), we get a palindrome (3143424243413).

The spelling of 2021222022211 in words is "two trillion, twenty-one billion, two hundred twenty-two million, twenty-two thousand, two hundred eleven".