201201201101 has 8 divisors (see below), whose sum is σ = 204471157944. Its totient is φ = 197945130240.

The previous prime is 201201201059. The next prime is 201201201127. The reversal of 201201201101 is 101102102102.

It can be written as a sum of positive squares in 4 ways, for example, as 70092033001 + 131109168100 = 264749^2 + 362090^2 .

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 201201201101 - 2³⁴ = 184021331917 is a prime.

It is a super-2 number, since 2×201201201101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201201151) 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, 3442280 + ... + 3500241.

It is an arithmetic number, because the mean of its divisors is an integer number (25558894743).

Almost surely, 2^201201201101 is an apocalyptic number.

It is an amenable number.

201201201101 is a deficient number, since it is larger than the sum of its proper divisors (3269956843).

201201201101 is an equidigital number, since it uses as much as digits as its factorization.

201201201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942991.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201201201101 its reverse (101102102102), we get a palindrome (302303303203).

It can be divided in two parts, 20120 and 1201101, that added together give a palindrome (1221221).

The spelling of 201201201101 in words is "two hundred one billion, two hundred one million, two hundred one thousand, one hundred one".