20202211201 has 4 divisors (see below), whose sum is σ = 20209886532. Its totient is φ = 20194535872.

The previous prime is 20202211121. The next prime is 20202211213. The reversal of 20202211201 is 10211220202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10211220202 = 2 ⋅5105610101.

It can be written as a sum of positive squares in 2 ways, for example, as 8013830400 + 12188380801 = 89520^2 + 110401^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202211201 - 2⁹ = 20202210689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202211231) 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, 3833716 + ... + 3838981.

It is an arithmetic number, because the mean of its divisors is an integer number (5052471633).

Almost surely, 2^20202211201 is an apocalyptic number.

It is an amenable number.

20202211201 is a deficient number, since it is larger than the sum of its proper divisors (7675331).

20202211201 is an equidigital number, since it uses as much as digits as its factorization.

20202211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675330.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20202211201 its reverse (10211220202), we get a palindrome (30413431403).

Subtracting from 20202211201 its reverse (10211220202), we obtain a palindrome (9990990999).

The spelling of 20202211201 in words is "twenty billion, two hundred two million, two hundred eleven thousand, two hundred one".