201020220199 has 4 divisors (see below), whose sum is σ = 207951951960. Its totient is φ = 194088488440.

The previous prime is 201020220143. The next prime is 201020220227. The reversal of 201020220199 is 991022020102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201020220199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020220899) 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, 3465865837 + ... + 3465865894.

It is an arithmetic number, because the mean of its divisors is an integer number (51987987990).

Almost surely, 2^201020220199 is an apocalyptic number.

201020220199 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

201020220199 is a deficient number, since it is larger than the sum of its proper divisors (6931731761).

201020220199 is an equidigital number, since it uses as much as digits as its factorization.

201020220199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931731760.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 201020220199 in words is "two hundred one billion, twenty million, two hundred twenty thousand, one hundred ninety-nine".