21022200100022 has 16 divisors (see below), whose sum is σ = 34431610540032. Its totient is φ = 9546754738920.

The previous prime is 21022200100021. The next prime is 21022200100039. The reversal of 21022200100022 is 22000100222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022200100021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439513598 + ... + 439561425.

It is an arithmetic number, because the mean of its divisors is an integer number (2151975658752).

Almost surely, 2^{21022200100022} is an apocalyptic number.

21022200100022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022200100022 is a deficient number, since it is larger than the sum of its proper divisors (13409410440010).

21022200100022 is a wasteful number, since it uses less digits than its factorization.

21022200100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879076123.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21022200100022 its reverse (22000100222012), we get a palindrome (43022300322034).

The spelling of 21022200100022 in words is "twenty-one trillion, twenty-two billion, two hundred million, one hundred thousand, twenty-two".