22221420213340 has 24 divisors (see below), whose sum is σ = 46815030636192. Its totient is φ = 8859987478080.

The previous prime is 22221420213323. The next prime is 22221420213361. The reversal of 22221420213340 is 4331202412222.

It is a super-2 number, since 2×22221420213340² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22221420213299 and 22221420213308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786281579 + ... + 1786294018.

It is an arithmetic number, because the mean of its divisors is an integer number (1950626276508).

Almost surely, 2^{22221420213340} is an apocalyptic number.

22221420213340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221420213340 is an abundant number, since it is smaller than the sum of its proper divisors (24593610422852).

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

22221420213340 is a wasteful number, since it uses less digits than its factorization.

22221420213340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572575917 (or 3572575915 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22221420213340 its reverse (4331202412222), we get a palindrome (26552622625562).

The spelling of 22221420213340 in words is "twenty-two trillion, two hundred twenty-one billion, four hundred twenty million, two hundred thirteen thousand, three hundred forty".