22122122022212 has 6 divisors (see below), whose sum is σ = 38713713538878. Its totient is φ = 11061061011104.

The previous prime is 22122122022103. The next prime is 22122122022227. The reversal of 22122122022212 is 21222022122122.

It can be written as a sum of positive squares in only one way, i.e., 19509942004036 + 2612180018176 = 4417006^2 + 1616224^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765265252773 + ... + 2765265252780.

It is an arithmetic number, because the mean of its divisors is an integer number (6452285589813).

Almost surely, 2^{22122122022212} is an apocalyptic number.

It is an amenable number.

22122122022212 is a deficient number, since it is larger than the sum of its proper divisors (16591591516666).

22122122022212 is a wasteful number, since it uses less digits than its factorization.

22122122022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530530505557 (or 5530530505555 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22122122022212 its reverse (21222022122122), we get a palindrome (43344144144334).

The spelling of 22122122022212 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, twenty-two thousand, two hundred twelve".