201222020101 has 8 divisors (see below), whose sum is σ = 204658930008. Its totient is φ = 197789568000.

The previous prime is 201222020081. The next prime is 201222020107. The reversal of 201222020101 is 101020222102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 862831876 + 200359188225 = 29374^2 + 447615^2 .

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 201222020101 - 2³⁷ = 63783066629 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 (201222020107) 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, 1023340 + ... + 1204021.

It is an arithmetic number, because the mean of its divisors is an integer number (25582366251).

Almost surely, 2^201222020101 is an apocalyptic number.

It is an amenable number.

201222020101 is a deficient number, since it is larger than the sum of its proper divisors (3436909907).

201222020101 is a wasteful number, since it uses less digits than its factorization.

201222020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228903.

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

Adding to 201222020101 its reverse (101020222102), we get a palindrome (302242242203).

The spelling of 201222020101 in words is "two hundred one billion, two hundred twenty-two million, twenty thousand, one hundred one".