20211122021222 has 32 divisors (see below), whose sum is σ = 33411458599200. Its totient is φ = 9092847904000.

The previous prime is 20211122021197. The next prime is 20211122021291. The reversal of 20211122021222 is 22212022111202.

It is a junction number, because it is equal to n+sod(n) for n = 20211122021194 and 20211122021203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5065304 + ... + 8128932.

It is an arithmetic number, because the mean of its divisors is an integer number (1044108081225).

Almost surely, 2^{20211122021222} is an apocalyptic number.

20211122021222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20211122021222 is a deficient number, since it is larger than the sum of its proper divisors (13200336577978).

20211122021222 is a wasteful number, since it uses less digits than its factorization.

20211122021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066712.

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

Adding to 20211122021222 its reverse (22212022111202), we get a palindrome (42423144132424).

The spelling of 20211122021222 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-two".