200420322101 has 4 divisors (see below), whose sum is σ = 200855073804. Its totient is φ = 199985570400.

The previous prime is 200420322071. The next prime is 200420322107. The reversal of 200420322101 is 101223024002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29045021476 + 171375300625 = 170426^2 + 413975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200420322101 is a prime.

It is a super-2 number, since 2×200420322101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200420322101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200420322107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217375160 + ... + 217376081.

It is an arithmetic number, because the mean of its divisors is an integer number (50213768451).

Almost surely, 2^200420322101 is an apocalyptic number.

It is an amenable number.

200420322101 is a deficient number, since it is larger than the sum of its proper divisors (434751703).

200420322101 is an equidigital number, since it uses as much as digits as its factorization.

200420322101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434751702.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 200420322101 its reverse (101223024002), we get a palindrome (301643346103).

The spelling of 200420322101 in words is "two hundred billion, four hundred twenty million, three hundred twenty-two thousand, one hundred one".