21022101010222 has 12 divisors (see below), whose sum is σ = 34145365250880. Its totient is φ = 9702508158408.

The previous prime is 21022101010213. The next prime is 21022101010249. The reversal of 21022101010222 is 22201010122012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21022101010196 and 21022101010205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31097782222 + ... + 31097782897.

It is an arithmetic number, because the mean of its divisors is an integer number (2845447104240).

Almost surely, 2^{21022101010222} is an apocalyptic number.

21022101010222 is a deficient number, since it is larger than the sum of its proper divisors (13123264240658).

21022101010222 is a wasteful number, since it uses less digits than its factorization.

21022101010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62195565147 (or 62195565134 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022101010222 its reverse (22201010122012), we get a palindrome (43223111132234).

The spelling of 21022101010222 in words is "twenty-one trillion, twenty-two billion, one hundred one million, ten thousand, two hundred twenty-two".