20201144201 has 12 divisors (see below), whose sum is σ = 23657012100. Its totient is φ = 17199050400.

The previous prime is 20201144189. The next prime is 20201144209. The reversal of 20201144201 is 10244110202.

It can be written as a sum of positive squares in 2 ways, for example, as 1949134201 + 18252010000 = 44149^2 + 135100^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20201144201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20201144201.

It is not an unprimeable number, because it can be changed into a prime (20201144209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1376150 + ... + 1390751.

It is an arithmetic number, because the mean of its divisors is an integer number (1971417675).

Almost surely, 2^20201144201 is an apocalyptic number.

It is an amenable number.

20201144201 is a deficient number, since it is larger than the sum of its proper divisors (3455867899).

20201144201 is a wasteful number, since it uses less digits than its factorization.

20201144201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767064 (or 2767057 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20201144201 its reverse (10244110202), we get a palindrome (30445254403).

The spelling of 20201144201 in words is "twenty billion, two hundred one million, one hundred forty-four thousand, two hundred one".