200220201901 has 2 divisors, whose sum is σ = 200220201902. Its totient is φ = 200220201900.

The previous prime is 200220201871. The next prime is 200220201917. The reversal of 200220201901 is 109102022002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190069840900 + 10150361001 = 435970^2 + 100749^2 .

It is a cyclic number.

It is not a de Polignac number, because 200220201901 - 2¹⁵ = 200220169133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200220201971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110100950 + 100110100951.

It is an arithmetic number, because the mean of its divisors is an integer number (100110100951).

Almost surely, 2^200220201901 is an apocalyptic number.

It is an amenable number.

200220201901 is a deficient number, since it is larger than the sum of its proper divisors (1).

200220201901 is an equidigital number, since it uses as much as digits as its factorization.

200220201901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 200220201901 its reverse (109102022002), we get a palindrome (309322223903).

The spelling of 200220201901 in words is "two hundred billion, two hundred twenty million, two hundred one thousand, nine hundred one".