22220511321040 has 40 divisors (see below), whose sum is σ = 51735555933480. Its totient is φ = 8875668251136.

The previous prime is 22220511321013. The next prime is 22220511321053. The reversal of 22220511321040 is 4012311502222.

It can be written as a sum of positive squares in 4 ways, for example, as 67373470096 + 22153137850944 = 259564^2 + 4706712^2 .

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

It is a super-2 number, since 2×22220511321040² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22220511320996 and 22220511321014.

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, 195822259 + ... + 195935698.

It is an arithmetic number, because the mean of its divisors is an integer number (1293388898337).

Almost surely, 2^{22220511321040} is an apocalyptic number.

22220511321040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220511321040 is an abundant number, since it is smaller than the sum of its proper divisors (29515044612440).

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

22220511321040 is a wasteful number, since it uses less digits than its factorization.

22220511321040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391758679 (or 391758673 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22220511321040 its reverse (4012311502222), we get a palindrome (26232822823262).

The spelling of 22220511321040 in words is "twenty-two trillion, two hundred twenty billion, five hundred eleven million, three hundred twenty-one thousand, forty".