20202201191 has 8 divisors (see below), whose sum is σ = 20228144640. Its totient is φ = 20176277688.

The previous prime is 20202201163. The next prime is 20202201223. The reversal of 20202201191 is 19110220202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20202201191 - 2³⁴ = 3022332007 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 (20202201101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3140120 + ... + 3146546.

It is an arithmetic number, because the mean of its divisors is an integer number (2528518080).

Almost surely, 2^20202201191 is an apocalyptic number.

20202201191 is a deficient number, since it is larger than the sum of its proper divisors (25943449).

20202201191 is a wasteful number, since it uses less digits than its factorization.

20202201191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9973.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20202201191 its reverse (19110220202), we get a palindrome (39312421393).

The spelling of 20202201191 in words is "twenty billion, two hundred two million, two hundred one thousand, one hundred ninety-one".