1212020011101 has 8 divisors (see below), whose sum is σ = 1616302618624. Its totient is φ = 807875372160.

The previous prime is 1212020011063. The next prime is 1212020011177. The reversal of 1212020011101 is 1011100202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212020011101 - 2⁹ = 1212020010589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212020021101) 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 7 ways as a sum of consecutive naturals, for example, 34471645 + ... + 34506786.

It is an arithmetic number, because the mean of its divisors is an integer number (202037827328).

Almost surely, 2^{1212020011101} is an apocalyptic number.

It is an amenable number.

1212020011101 is a deficient number, since it is larger than the sum of its proper divisors (404282607523).

1212020011101 is an equidigital number, since it uses as much as digits as its factorization.

1212020011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68984291.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1212020011101 its reverse (1011100202121), we get a palindrome (2223120213222).

The spelling of 1212020011101 in words is "one trillion, two hundred twelve billion, twenty million, eleven thousand, one hundred one".