22140021222 has 48 divisors (see below), whose sum is σ = 54079406640. Its totient is φ = 6709095360.

The previous prime is 22140021217. The next prime is 22140021227. The reversal of 22140021222 is 22212004122.

22140021222 is a `hidden beast` number, since 2 + 21 + 400 + 21 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (22140021217) and next prime (22140021227).

It is a super-2 number, since 2×22140021222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22140021195 and 22140021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22140021227) 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, 1687683 + ... + 1700750.

It is an arithmetic number, because the mean of its divisors is an integer number (1126654305).

Almost surely, 2^22140021222 is an apocalyptic number.

22140021222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22140021222 is an abundant number, since it is smaller than the sum of its proper divisors (31939385418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22140021222 is a wasteful number, since it uses less digits than its factorization.

22140021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388466 (or 3388449 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22140021222 its reverse (22212004122), we get a palindrome (44352025344).

The spelling of 22140021222 in words is "twenty-two billion, one hundred forty million, twenty-one thousand, two hundred twenty-two".