20122201201 has 4 divisors (see below), whose sum is σ = 20300273892. Its totient is φ = 19944128512.

The previous prime is 20122201171. The next prime is 20122201247. The reversal of 20122201201 is 10210222102.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5769921600 + 14352279601 = 75960^2 + 119801^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122201201 - 2²⁷ = 19987983473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122201601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89036176 + ... + 89036401.

It is an arithmetic number, because the mean of its divisors is an integer number (5075068473).

Almost surely, 2^20122201201 is an apocalyptic number.

It is an amenable number.

20122201201 is a deficient number, since it is larger than the sum of its proper divisors (178072691).

20122201201 is a wasteful number, since it uses less digits than its factorization.

20122201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178072690.

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

Adding to 20122201201 its reverse (10210222102), we get a palindrome (30332423303).

The spelling of 20122201201 in words is "twenty billion, one hundred twenty-two million, two hundred one thousand, two hundred one".