11010211201220 has 72 divisors (see below), whose sum is σ = 29341497931200. Its totient is φ = 3431754137280.

The previous prime is 11010211201211. The next prime is 11010211201279. The reversal of 11010211201220 is 2210211201011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 11010211201195 and 11010211201204.

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, 510666920 + ... + 510688479.

It is an arithmetic number, because the mean of its divisors is an integer number (407520804600).

Almost surely, 2^{11010211201220} is an apocalyptic number.

11010211201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11010211201220 is an abundant number, since it is smaller than the sum of its proper divisors (18331286729980).

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

11010211201220 is a wasteful number, since it uses less digits than its factorization.

11010211201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021355433 (or 1021355424 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11010211201220 its reverse (2210211201011), we get a palindrome (13220422402231).

The spelling of 11010211201220 in words is "eleven trillion, ten billion, two hundred eleven million, two hundred one thousand, two hundred twenty".