11020021194 has 48 divisors (see below), whose sum is σ = 27275268672. Its totient is φ = 2906377344.

The previous prime is 11020021193. The next prime is 11020021213. The reversal of 11020021194 is 49112002011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11020021194.

It is not an unprimeable number, because it can be changed into a prime (11020021193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 769179 + ... + 783374.

It is an arithmetic number, because the mean of its divisors is an integer number (568234764).

Almost surely, 2^11020021194 is an apocalyptic number.

11020021194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11020021194 is an abundant number, since it is smaller than the sum of its proper divisors (16255247478).

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

11020021194 is a wasteful number, since it uses less digits than its factorization.

11020021194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552591 (or 1552578 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 11020021194 in words is "eleven billion, twenty million, twenty-one thousand, one hundred ninety-four".