20340221202 has 224 divisors, whose sum is σ = 56944425600. Its totient is φ = 5314305024.

The previous prime is 20340221147. The next prime is 20340221203. The reversal of 20340221202 is 20212204302.

20340221202 is a `hidden beast` number, since 203 + 40 + 221 + 202 = 666.

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 (20340221203) 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 111 ways as a sum of consecutive naturals, for example, 5621698 + ... + 5625314.

Almost surely, 2^20340221202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20340221202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28472212800).

20340221202 is an abundant number, since it is smaller than the sum of its proper divisors (36604204398).

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

20340221202 is a wasteful number, since it uses less digits than its factorization.

20340221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692 (or 3677 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20340221202 its reverse (20212204302), we get a palindrome (40552425504).

The spelling of 20340221202 in words is "twenty billion, three hundred forty million, two hundred twenty-one thousand, two hundred two".