22210436351440 has 40 divisors (see below), whose sum is σ = 51702162677928. Its totient is φ = 8873353351680.

The previous prime is 22210436351437. The next prime is 22210436351503. The reversal of 22210436351440 is 4415363401222.

It can be written as a sum of positive squares in 4 ways, for example, as 1582634448784 + 20627801902656 = 1258028^2 + 4541784^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 22210436351440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169014987 + ... + 169146346.

Almost surely, 2^{22210436351440} is an apocalyptic number.

22210436351440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210436351440 is an abundant number, since it is smaller than the sum of its proper divisors (29491726326488).

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

22210436351440 is a wasteful number, since it uses less digits than its factorization.

22210436351440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338162167 (or 338162161 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 22210436351440 its reverse (4415363401222), we get a palindrome (26625799752662).

The spelling of 22210436351440 in words is "twenty-two trillion, two hundred ten billion, four hundred thirty-six million, three hundred fifty-one thousand, four hundred forty".