12021011210101 has 4 divisors (see below), whose sum is σ = 12108755817612. Its totient is φ = 11933266602592.

The previous prime is 12021011210069. The next prime is 12021011210111. The reversal of 12021011210101 is 10101211012021.

It is a happy number.

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 2582143679025 + 9438867531076 = 1606905^2 + 3072274^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021011210101 - 2⁵ = 12021011210069 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 (12021011210111) 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, 43872303550 + ... + 43872303823.

It is an arithmetic number, because the mean of its divisors is an integer number (3027188954403).

Almost surely, 2^{12021011210101} is an apocalyptic number.

It is an amenable number.

12021011210101 is a deficient number, since it is larger than the sum of its proper divisors (87744607511).

12021011210101 is an equidigital number, since it uses as much as digits as its factorization.

12021011210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87744607510.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12021011210101 its reverse (10101211012021), we get a palindrome (22122222222122).

The spelling of 12021011210101 in words is "twelve trillion, twenty-one billion, eleven million, two hundred ten thousand, one hundred one".