1000011220164 has 72 divisors (see below), whose sum is σ = 2777735364768. Its totient is φ = 300821761920.

The previous prime is 1000011220163. The next prime is 1000011220211. The reversal of 1000011220164 is 4610221100001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1000011220163) 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, 9162102 + ... + 9270605.

It is an arithmetic number, because the mean of its divisors is an integer number (38579657844).

Almost surely, 2^{1000011220164} is an apocalyptic number.

It is an amenable number.

1000011220164 is an abundant number, since it is smaller than the sum of its proper divisors (1777724144604).

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

1000011220164 is a wasteful number, since it uses less digits than its factorization.

1000011220164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18432865 (or 18432860 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1000011220164 its reverse (4610221100001), we get a palindrome (5610232320165).

The spelling of 1000011220164 in words is "one trillion, eleven million, two hundred twenty thousand, one hundred sixty-four".