11010121001220 has 96 divisors (see below), whose sum is σ = 33667833378816. Its totient is φ = 2666190217600.

The previous prime is 11010121001219. The next prime is 11010121001249. The reversal of 11010121001220 is 2210012101011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11010121001196 and 11010121001205.

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, 8554614 + ... + 9757133.

It is an arithmetic number, because the mean of its divisors is an integer number (350706597696).

Almost surely, 2^{11010121001220} is an apocalyptic number.

11010121001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11010121001220 is an abundant number, since it is smaller than the sum of its proper divisors (22657712377596).

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

11010121001220 is a wasteful number, since it uses less digits than its factorization.

11010121001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18312681 (or 18312679 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11010121001220 its reverse (2210012101011), we get a palindrome (13220133102231).

The spelling of 11010121001220 in words is "eleven trillion, ten billion, one hundred twenty-one million, one thousand, two hundred twenty".