12101212312201 has 4 divisors (see below), whose sum is σ = 12271651922304. Its totient is φ = 11930772702100.

The previous prime is 12101212312153. The next prime is 12101212312207. The reversal of 12101212312201 is 10221321210121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12101212312201 - 2¹⁷ = 12101212181129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101212312207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85219804945 + ... + 85219805086.

It is an arithmetic number, because the mean of its divisors is an integer number (3067912980576).

Almost surely, 2^{12101212312201} is an apocalyptic number.

It is an amenable number.

12101212312201 is a deficient number, since it is larger than the sum of its proper divisors (170439610103).

12101212312201 is an equidigital number, since it uses as much as digits as its factorization.

12101212312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170439610102.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12101212312201 its reverse (10221321210121), we get a palindrome (22322533522322).

The spelling of 12101212312201 in words is "twelve trillion, one hundred one billion, two hundred twelve million, three hundred twelve thousand, two hundred one".