11220121211300 has 72 divisors (see below), whose sum is σ = 24978085050240. Its totient is φ = 4373216899200.

The previous prime is 11220121211261. The next prime is 11220121211359. The reversal of 11220121211300 is 311212102211.

It is a happy number.

It is a super-2 number, since 2×11220121211300² (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 23 ways as a sum of consecutive naturals, for example, 7942460 + ... + 9247859.

It is an arithmetic number, because the mean of its divisors is an integer number (346917847920).

Almost surely, 2^{11220121211300} is an apocalyptic number.

11220121211300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220121211300 is an abundant number, since it is smaller than the sum of its proper divisors (13757963838940).

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

11220121211300 is a wasteful number, since it uses less digits than its factorization.

11220121211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17190501 (or 17190494 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11220121211300 its reverse (311212102211), we get a palindrome (11531333313511).

The spelling of 11220121211300 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred eleven thousand, three hundred".