22421002023222 has 96 divisors (see below), whose sum is σ = 49430950410240. Its totient is φ = 6774718473600.

The previous prime is 22421002023187. The next prime is 22421002023289. The reversal of 22421002023222 is 22232020012422.

It is a super-2 number, since 2×22421002023222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22421002023192 and 22421002023201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 453098722 + ... + 453148202.

It is an arithmetic number, because the mean of its divisors is an integer number (514905733440).

Almost surely, 2^{22421002023222} is an apocalyptic number.

22421002023222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22421002023222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24715475205120).

22421002023222 is an abundant number, since it is smaller than the sum of its proper divisors (27009948387018).

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

22421002023222 is a wasteful number, since it uses less digits than its factorization.

22421002023222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51290 (or 51279 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22421002023222 its reverse (22232020012422), we get a palindrome (44653022035644).

The spelling of 22421002023222 in words is "twenty-two trillion, four hundred twenty-one billion, two million, twenty-three thousand, two hundred twenty-two".