22022220123 has 24 divisors (see below), whose sum is σ = 33515052480. Its totient is φ = 13895904240.

The previous prime is 22022220119. The next prime is 22022220149. The reversal of 22022220123 is 32102222022.

22022220123 is a `hidden beast` number, since 220 + 222 + 201 + 23 = 666.

It is not a de Polignac number, because 22022220123 - 2² = 22022220119 is a prime.

It is a super-2 number, since 2×22022220123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22022220096 and 22022220105.

It is not an unprimeable number, because it can be changed into a prime (22022220923) 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, 127540 + ... + 245582.

It is an arithmetic number, because the mean of its divisors is an integer number (1396460520).

Almost surely, 2^22022220123 is an apocalyptic number.

22022220123 is a deficient number, since it is larger than the sum of its proper divisors (11492832357).

22022220123 is a wasteful number, since it uses less digits than its factorization.

22022220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119159 (or 119156 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22022220123 its reverse (32102222022), we get a palindrome (54124442145).

The spelling of 22022220123 in words is "twenty-two billion, twenty-two million, two hundred twenty thousand, one hundred twenty-three".