11010010001220 has 72 divisors (see below), whose sum is σ = 33571884003840. Its totient is φ = 2920630916160.

The previous prime is 11010010001183. The next prime is 11010010001251. The reversal of 11010010001220 is 2210001001011.

It is a happy number.

11010010001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 160087930 + ... + 160156689.

It is an arithmetic number, because the mean of its divisors is an integer number (466276166720).

Almost surely, 2^{11010010001220} is an apocalyptic number.

11010010001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11010010001220 is an abundant number, since it is smaller than the sum of its proper divisors (22561874002620).

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

11010010001220 is a wasteful number, since it uses less digits than its factorization.

11010010001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320244825 (or 320244820 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11010010001220 its reverse (2210001001011), we get a palindrome (13220011002231).

The spelling of 11010010001220 in words is "eleven trillion, ten billion, ten million, one thousand, two hundred twenty".