22122220021222 has 16 divisors (see below), whose sum is σ = 35122803534000. Its totient is φ = 10421051591520.

The previous prime is 22122220021219. The next prime is 22122220021261. The reversal of 22122220021222 is 22212002222122.

It is a super-2 number, since 2×22122220021222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22122220021193 and 22122220021202.

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 7 ways as a sum of consecutive naturals, for example, 1608180097 + ... + 1608193852.

It is an arithmetic number, because the mean of its divisors is an integer number (2195175220875).

Almost surely, 2^{22122220021222} is an apocalyptic number.

22122220021222 is a deficient number, since it is larger than the sum of its proper divisors (13000583512778).

22122220021222 is a wasteful number, since it uses less digits than its factorization.

22122220021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216374151.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22122220021222 its reverse (22212002222122), we get a palindrome (44334222243344).

The spelling of 22122220021222 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, twenty-one thousand, two hundred twenty-two".