22121112022 has 4 divisors (see below), whose sum is σ = 33181668036. Its totient is φ = 11060556010.

The previous prime is 22121112001. The next prime is 22121112047. The reversal of 22121112022 is 22021112122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22021112122 = 2 ⋅11010556061.

It is a junction number, because it is equal to n+sod(n) for n = 22121111987 and 22121112005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530278004 + ... + 5530278007.

It is an arithmetic number, because the mean of its divisors is an integer number (8295417009).

Almost surely, 2^22121112022 is an apocalyptic number.

22121112022 is a deficient number, since it is larger than the sum of its proper divisors (11060556014).

22121112022 is a wasteful number, since it uses less digits than its factorization.

22121112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060556013.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121112022 its reverse (22021112122), we get a palindrome (44142224144).

The spelling of 22121112022 in words is "twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, twenty-two".