201220100202 has 128 divisors (see below), whose sum is σ = 462811345920. Its totient is φ = 57774528000.

The previous prime is 201220100201. The next prime is 201220100203. The reversal of 201220100202 is 202001022102.

201220100202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201220100201) and next prime (201220100203).

It is not an unprimeable number, because it can be changed into a prime (201220100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20823252 + ... + 20832912.

It is an arithmetic number, because the mean of its divisors is an integer number (3615713640).

Almost surely, 2^201220100202 is an apocalyptic number.

201220100202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201220100202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231405672960).

201220100202 is an abundant number, since it is smaller than the sum of its proper divisors (261591245718).

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

201220100202 is a wasteful number, since it uses less digits than its factorization.

201220100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201220100202 its reverse (202001022102), we get a palindrome (403221122304).

The spelling of 201220100202 in words is "two hundred one billion, two hundred twenty million, one hundred thousand, two hundred two".