21112212222022 has 8 divisors (see below), whose sum is σ = 32205069491400. Its totient is φ = 10377189058224.

The previous prime is 21112212222011. The next prime is 21112212222053. The reversal of 21112212222022 is 22022221221112.

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

It is a super-2 number, since 2×21112212222022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21112212221984 and 21112212222002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89458526247 + ... + 89458526482.

It is an arithmetic number, because the mean of its divisors is an integer number (4025633686425).

Almost surely, 2^{21112212222022} is an apocalyptic number.

21112212222022 is a deficient number, since it is larger than the sum of its proper divisors (11092857269378).

21112212222022 is a wasteful number, since it uses less digits than its factorization.

21112212222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178917052790.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21112212222022 its reverse (22022221221112), we get a palindrome (43134433443134).

The spelling of 21112212222022 in words is "twenty-one trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty-two thousand, twenty-two".