11021001020220 has 96 divisors (see below), whose sum is σ = 32810738688000. Its totient is φ = 2754481644544.

The previous prime is 11021001020207. The next prime is 11021001020251. The reversal of 11021001020220 is 2202010012011.

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 = 11021001020196 and 11021001020205.

It is a congruent number.

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, 22360620 + ... + 22848179.

It is an arithmetic number, because the mean of its divisors is an integer number (341778528000).

Almost surely, 2^{11021001020220} is an apocalyptic number.

11021001020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021001020220 is an abundant number, since it is smaller than the sum of its proper divisors (21789737667780).

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

11021001020220 is a wasteful number, since it uses less digits than its factorization.

11021001020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45209067 (or 45209065 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11021001020220 its reverse (2202010012011), we get a palindrome (13223011032231).

The spelling of 11021001020220 in words is "eleven trillion, twenty-one billion, one million, twenty thousand, two hundred twenty".