22120221221222 has 16 divisors (see below), whose sum is σ = 34938976382640. Its totient is φ = 10474306136928.

The previous prime is 22120221221179. The next prime is 22120221221239. The reversal of 22120221221222 is 22212212202122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102484913 + ... + 102700524.

It is an arithmetic number, because the mean of its divisors is an integer number (2183686023915).

Almost surely, 2^{22120221221222} is an apocalyptic number.

22120221221222 is a deficient number, since it is larger than the sum of its proper divisors (12818755161418).

22120221221222 is a wasteful number, since it uses less digits than its factorization.

22120221221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205188295.

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

Adding to 22120221221222 its reverse (22212212202122), we get a palindrome (44332433423344).

The spelling of 22120221221222 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".