11001210101220 has 48 divisors (see below), whose sum is σ = 30808834414848. Its totient is φ = 2933137347840.

The previous prime is 11001210101207. The next prime is 11001210101237. The reversal of 11001210101220 is 2210101210011.

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 = 11001210101196 and 11001210101205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15866476 + ... + 16545315.

It is an arithmetic number, because the mean of its divisors is an integer number (641850716976).

Almost surely, 2^{11001210101220} is an apocalyptic number.

11001210101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001210101220 is an abundant number, since it is smaller than the sum of its proper divisors (19807624313628).

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

11001210101220 is a wasteful number, since it uses less digits than its factorization.

11001210101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32417460 (or 32417458 counting only the distinct ones).

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

Adding to 11001210101220 its reverse (2210101210011), we get a palindrome (13211311311231).

The spelling of 11001210101220 in words is "eleven trillion, one billion, two hundred ten million, one hundred one thousand, two hundred twenty".