1101212112201 has 32 divisors (see below), whose sum is σ = 1536839516160. Its totient is φ = 700061402304.

The previous prime is 1101212112163. The next prime is 1101212112223. The reversal of 1101212112201 is 1022112121011.

It is a happy number.

It is not a de Polignac number, because 1101212112201 - 2²³ = 1101203723593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101212112251) 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 31 ways as a sum of consecutive naturals, for example, 64658355 + ... + 64675383.

It is an arithmetic number, because the mean of its divisors is an integer number (48026234880).

Almost surely, 2^{1101212112201} is an apocalyptic number.

It is an amenable number.

1101212112201 is a deficient number, since it is larger than the sum of its proper divisors (435627403959).

1101212112201 is a wasteful number, since it uses less digits than its factorization.

1101212112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19885.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1101212112201 its reverse (1022112121011), we get a palindrome (2123324233212).

The spelling of 1101212112201 in words is "one trillion, one hundred one billion, two hundred twelve million, one hundred twelve thousand, two hundred one".