22120214121 has 48 divisors (see below), whose sum is σ = 32916369408. Its totient is φ = 14309136000.

The previous prime is 22120214113. The next prime is 22120214153. The reversal of 22120214121 is 12141202122.

It is not a de Polignac number, because 22120214121 - 2³ = 22120214113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22120214094 and 22120214103.

It is not an unprimeable number, because it can be changed into a prime (22120214321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20349240 + ... + 20350326.

It is an arithmetic number, because the mean of its divisors is an integer number (685757696).

Almost surely, 2^22120214121 is an apocalyptic number.

It is an amenable number.

22120214121 is a deficient number, since it is larger than the sum of its proper divisors (10796155287).

22120214121 is a wasteful number, since it uses less digits than its factorization.

22120214121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22120214121 its reverse (12141202122), we get a palindrome (34261416243).

The spelling of 22120214121 in words is "twenty-two billion, one hundred twenty million, two hundred fourteen thousand, one hundred twenty-one".