20102221001184 has 96 divisors (see below), whose sum is σ = 60307812746496. Its totient is φ = 5743382215680.

The previous prime is 20102221001183. The next prime is 20102221001237. The reversal of 20102221001184 is 48110012220102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102221001183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39016419 + ... + 39528285.

It is an arithmetic number, because the mean of its divisors is an integer number (628206382776).

Almost surely, 2^{20102221001184} is an apocalyptic number.

20102221001184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20102221001184 is an abundant number, since it is smaller than the sum of its proper divisors (40205591745312).

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

20102221001184 is a wasteful number, since it uses less digits than its factorization.

20102221001184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570328 (or 570320 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 20102221001184 its reverse (48110012220102), we get a palindrome (68212233221286).

The spelling of 20102221001184 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, one thousand, one hundred eighty-four".