11021201000 has 64 divisors (see below), whose sum is σ = 26389471680. Its totient is φ = 4305940800.

The previous prime is 11021200987. The next prime is 11021201027. The reversal of 11021201000 is 10212011.

It is a Harshad number since it is a multiple of its sum of digits (8).

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, 85154 + ... + 171153.

It is an arithmetic number, because the mean of its divisors is an integer number (412335495).

Almost surely, 2^11021201000 is an apocalyptic number.

11021201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021201000 is an abundant number, since it is smaller than the sum of its proper divisors (15368270680).

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

11021201000 is a wasteful number, since it uses less digits than its factorization.

11021201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256371 (or 256357 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11021201000 its reverse (10212011), we get a palindrome (11031413011).

The spelling of 11021201000 in words is "eleven billion, twenty-one million, two hundred one thousand".