22100022001222 has 64 divisors (see below), whose sum is σ = 37292297444928. Its totient is φ = 9738144000000.

The previous prime is 22100022001171. The next prime is 22100022001231. The reversal of 22100022001222 is 22210022000122.

It is a junction number, because it is equal to n+sod(n) for n = 22100022001196 and 22100022001205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21724972 + ... + 22719472.

It is an arithmetic number, because the mean of its divisors is an integer number (582692147577).

Almost surely, 2^{22100022001222} is an apocalyptic number.

22100022001222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22100022001222 is a deficient number, since it is larger than the sum of its proper divisors (15192275443706).

22100022001222 is a wasteful number, since it uses less digits than its factorization.

22100022001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994825.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22100022001222 its reverse (22210022000122), we get a palindrome (44310044001344).

It can be divided in two parts, 221000 and 22001222, that added together give a palindrome (22222222).

The spelling of 22100022001222 in words is "twenty-two trillion, one hundred billion, twenty-two million, one thousand, two hundred twenty-two".