20121202101101 has 4 divisors (see below), whose sum is σ = 20121289395900. Its totient is φ = 20121114806304.

The previous prime is 20121202101071. The next prime is 20121202101167. The reversal of 20121202101101 is 10110120212102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12681782200201 + 7439419900900 = 3561149^2 + 2727530^2 .

It is a cyclic number.

It is not a de Polignac number, because 20121202101101 - 2³⁸ = 19846324194157 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 (20121202161101) 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, 43300736 + ... + 43762953.

It is an arithmetic number, because the mean of its divisors is an integer number (5030322348975).

Almost surely, 2^{20121202101101} is an apocalyptic number.

It is an amenable number.

20121202101101 is a deficient number, since it is larger than the sum of its proper divisors (87294799).

20121202101101 is an equidigital number, since it uses as much as digits as its factorization.

20121202101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87294798.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20121202101101 its reverse (10110120212102), we get a palindrome (30231322313203).

The spelling of 20121202101101 in words is "twenty trillion, one hundred twenty-one billion, two hundred two million, one hundred one thousand, one hundred one".