22221135235340 has 48 divisors (see below), whose sum is σ = 48693847688640. Its totient is φ = 8501898746880.

The previous prime is 22221135235337. The next prime is 22221135235373. The reversal of 22221135235340 is 4353253112222.

It is a super-2 number, since 2×22221135235340² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22221135235340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47035016 + ... + 47505104.

It is an arithmetic number, because the mean of its divisors is an integer number (1014455160180).

Almost surely, 2^{22221135235340} is an apocalyptic number.

22221135235340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221135235340 is an abundant number, since it is smaller than the sum of its proper divisors (26472712453300).

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

22221135235340 is a wasteful number, since it uses less digits than its factorization.

22221135235340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572882 (or 572880 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 22221135235340 its reverse (4353253112222), we get a palindrome (26574388347562).

The spelling of 22221135235340 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred thirty-five million, two hundred thirty-five thousand, three hundred forty".