11021220210020 has 48 divisors (see below), whose sum is σ = 24375720096000. Its totient is φ = 4174229917440.

The previous prime is 11021220209999. The next prime is 11021220210047. The reversal of 11021220210020 is 2001202212011.

It is a junction number, because it is equal to n+sod(n) for n = 11021220209977 and 11021220210004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7039745 + ... + 8461704.

It is an arithmetic number, because the mean of its divisors is an integer number (507827502000).

Almost surely, 2^{11021220210020} is an apocalyptic number.

11021220210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021220210020 is an abundant number, since it is smaller than the sum of its proper divisors (13354499885980).

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

11021220210020 is a wasteful number, since it uses less digits than its factorization.

11021220210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15503348 (or 15503346 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11021220210020 its reverse (2001202212011), we get a palindrome (13022422422031).

The spelling of 11021220210020 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred ten thousand, twenty".