22320122121 has 24 divisors (see below), whose sum is σ = 35566296480. Its totient is φ = 13375348800.

The previous prime is 22320122119. The next prime is 22320122173. The reversal of 22320122121 is 12122102322.

22320122121 is a `hidden beast` number, since 223 + 201 + 221 + 21 = 666.

It is not a de Polignac number, because 22320122121 - 2¹ = 22320122119 is a prime.

It is a super-3 number, since 3×22320122121³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22320122094 and 22320122103.

It is not an unprimeable number, because it can be changed into a prime (22320122191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1257795 + ... + 1275416.

It is an arithmetic number, because the mean of its divisors is an integer number (1481929020).

Almost surely, 2^22320122121 is an apocalyptic number.

It is an amenable number.

22320122121 is a deficient number, since it is larger than the sum of its proper divisors (13246174359).

22320122121 is a wasteful number, since it uses less digits than its factorization.

22320122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533317 (or 2533314 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22320122121 its reverse (12122102322), we get a palindrome (34442224443).

It can be divided in two parts, 22320 and 122121, that added together give a palindrome (144441).

The spelling of 22320122121 in words is "twenty-two billion, three hundred twenty million, one hundred twenty-two thousand, one hundred twenty-one".