11221021010000 has 50 divisors (see below), whose sum is σ = 27167213991522. Its totient is φ = 4488408400000.

The previous prime is 11221021009997. The next prime is 11221021010051. The reversal of 11221021010000 is 1012012211.

It can be written as a sum of positive squares in 5 ways, for example, as 2321491038736 + 8899529971264 = 1523644^2 + 2983208^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×11221021010000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 561041051 + ... + 561061050.

Almost surely, 2^{11221021010000} is an apocalyptic number.

11221021010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221021010000 is an abundant number, since it is smaller than the sum of its proper divisors (15946192981522).

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

11221021010000 is an equidigital number, since it uses as much as digits as its factorization.

11221021010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122102129 (or 1122102108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11221021010000 its reverse (1012012211), we get a palindrome (11222033022211).

The spelling of 11221021010000 in words is "eleven trillion, two hundred twenty-one billion, twenty-one million, ten thousand".