1101000012201 has 18 divisors (see below), whose sum is σ = 1614424002282. Its totient is φ = 723044757600.

The previous prime is 1101000012137. The next prime is 1101000012209. The reversal of 1101000012201 is 1022100001011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1071119432601 + 29880579600 = 1034949^2 + 172860^2 .

It is not a de Polignac number, because 1101000012201 - 2⁶ = 1101000012137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1101000012209) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13585500 + ... + 13666301.

It is an arithmetic number, because the mean of its divisors is an integer number (89690222349).

Almost surely, 2^{1101000012201} is an apocalyptic number.

It is an amenable number.

1101000012201 is a deficient number, since it is larger than the sum of its proper divisors (513423990081).

1101000012201 is an equidigital number, since it uses as much as digits as its factorization.

1101000012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27251941 (or 27251871 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1101000012201 its reverse (1022100001011), we get a palindrome (2123100013212).

The spelling of 1101000012201 in words is "one trillion, one hundred one billion, twelve thousand, two hundred one".