22210221121 has 8 divisors (see below), whose sum is σ = 24254928864. Its totient is φ = 20169779520.

The previous prime is 22210221091. The next prime is 22210221127. The reversal of 22210221121 is 12112201222.

It is a happy number.

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

It is not a de Polignac number, because 22210221121 - 2⁷ = 22210220993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210221095 and 22210221104.

It is not an unprimeable number, because it can be changed into a prime (22210221127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055640 + ... + 1076473.

It is an arithmetic number, because the mean of its divisors is an integer number (3031866108).

Almost surely, 2^22210221121 is an apocalyptic number.

It is an amenable number.

22210221121 is a deficient number, since it is larger than the sum of its proper divisors (2044707743).

22210221121 is a wasteful number, since it uses less digits than its factorization.

22210221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133071.

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

Adding to 22210221121 its reverse (12112201222), we get a palindrome (34322422343).

The spelling of 22210221121 in words is "twenty-two billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".