11021222010500 has 96 divisors (see below), whose sum is σ = 25961620819680. Its totient is φ = 4063140902400.

The previous prime is 11021222010473. The next prime is 11021222010527. The reversal of 11021222010500 is 501022212011.

It is an interprime number because it is at equal distance from previous prime (11021222010473) and next prime (11021222010527).

It can be written as a sum of positive squares in 16 ways, for example, as 7636733279296 + 3384488731204 = 2763464^2 + 1839698^2 .

It is a super-2 number, since 2×11021222010500² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2946206 + ... + 5542794.

It is an arithmetic number, because the mean of its divisors is an integer number (270433550205).

Almost surely, 2^{11021222010500} is an apocalyptic number.

11021222010500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11021222010500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12980810409840).

11021222010500 is an abundant number, since it is smaller than the sum of its proper divisors (14940398809180).

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

11021222010500 is a wasteful number, since it uses less digits than its factorization.

11021222010500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597274 (or 2597262 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 11021222010500 its reverse (501022212011), we get a palindrome (11522244222511).

The spelling of 11021222010500 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, ten thousand, five hundred".