22121303400222 has 32 divisors (see below), whose sum is σ = 48357016858752. Its totient is φ = 6704964519264.

The previous prime is 22121303400187. The next prime is 22121303400233. The reversal of 22121303400222 is 22200430312122.

It is a junction number, because it is equal to n+sod(n) for n = 22121303400192 and 22121303400201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2116460848 + ... + 2116471299.

It is an arithmetic number, because the mean of its divisors is an integer number (1511156776836).

Almost surely, 2^{22121303400222} is an apocalyptic number.

22121303400222 is an abundant number, since it is smaller than the sum of its proper divisors (26235713458530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121303400222 is a wasteful number, since it uses less digits than its factorization.

22121303400222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232932232.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22121303400222 its reverse (22200430312122), we get a palindrome (44321733712344).

The spelling of 22121303400222 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred three million, four hundred thousand, two hundred twenty-two".