21022211102222 has 32 divisors (see below), whose sum is σ = 34818090088320. Its totient is φ = 9439433457120.

The previous prime is 21022211102213. The next prime is 21022211102239. The reversal of 21022211102222 is 22220111222012.

It is a super-3 number, since 3×21022211102222³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 21022211102194 and 21022211102203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16954529 + ... + 18152147.

It is an arithmetic number, because the mean of its divisors is an integer number (1088065315260).

Almost surely, 2^{21022211102222} is an apocalyptic number.

21022211102222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022211102222 is a deficient number, since it is larger than the sum of its proper divisors (13795878986098).

21022211102222 is a wasteful number, since it uses less digits than its factorization.

21022211102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207328.

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

Adding to 21022211102222 its reverse (22220111222012), we get a palindrome (43242322324234).

The spelling of 21022211102222 in words is "twenty-one trillion, twenty-two billion, two hundred eleven million, one hundred two thousand, two hundred twenty-two".