11222020021000 has 64 divisors (see below), whose sum is σ = 26261119946880. Its totient is φ = 4488535684800.

The previous prime is 11222020020997. The next prime is 11222020021001. The reversal of 11222020021000 is 12002022211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11222020021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16571047 + ... + 17234953.

It is an arithmetic number, because the mean of its divisors is an integer number (410329999170).

Almost surely, 2^{11222020021000} is an apocalyptic number.

11222020021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222020021000 is an abundant number, since it is smaller than the sum of its proper divisors (15039099925880).

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

11222020021000 is a wasteful number, since it uses less digits than its factorization.

11222020021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680831 (or 680817 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11222020021000 its reverse (12002022211), we get a palindrome (11234022043211).

The spelling of 11222020021000 in words is "eleven trillion, two hundred twenty-two billion, twenty million, twenty-one thousand".