22220121022 has 8 divisors (see below), whose sum is σ = 36360198072. Its totient is φ = 10100055000.

The previous prime is 22220120953. The next prime is 22220121029. The reversal of 22220121022 is 22012102222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22220120987 and 22220121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220121029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505002729 + ... + 505002772.

It is an arithmetic number, because the mean of its divisors is an integer number (4545024759).

Almost surely, 2^22220121022 is an apocalyptic number.

22220121022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22220121022 is a deficient number, since it is larger than the sum of its proper divisors (14140077050).

22220121022 is a wasteful number, since it uses less digits than its factorization.

22220121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010005514.

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

Adding to 22220121022 its reverse (22012102222), we get a palindrome (44232223244).

It can be divided in two parts, 22 and 220121022, that multiplied together give a palindrome (4842662484).

The spelling of 22220121022 in words is "twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, twenty-two".