22021200001222 has 24 divisors (see below), whose sum is σ = 35644291341120. Its totient is φ = 10192140237840.

The previous prime is 22021200001193. The next prime is 22021200001243. The reversal of 22021200001222 is 22210000212022.

It is a junction number, because it is equal to n+sod(n) for n = 22021200001196 and 22021200001205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335676697 + ... + 335742292.

It is an arithmetic number, because the mean of its divisors is an integer number (1485178805880).

Almost surely, 2^{22021200001222} is an apocalyptic number.

22021200001222 is a deficient number, since it is larger than the sum of its proper divisors (13623091339898).

22021200001222 is a wasteful number, since it uses less digits than its factorization.

22021200001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671419068 (or 671419045 counting only the distinct ones).

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

Adding to 22021200001222 its reverse (22210000212022), we get a palindrome (44231200213244).

The spelling of 22021200001222 in words is "twenty-two trillion, twenty-one billion, two hundred million, one thousand, two hundred twenty-two".