212020120011121 has 8 divisors (see below), whose sum is σ = 214119625106088. Its totient is φ = 209920620720000.

The previous prime is 212020120011113. The next prime is 212020120011173. The reversal of 212020120011121 is 121110021020212.

It can be written as a sum of positive squares in 4 ways, for example, as 21377344062096 + 190642775949025 = 4623564^2 + 13807345^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 212020120011121 - 2³ = 212020120011113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020120011095 and 212020120011104.

It is not an unprimeable number, because it can be changed into a prime (212020120012121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137998011 + ... + 139525951.

It is an arithmetic number, because the mean of its divisors is an integer number (26764953138261).

Almost surely, 2^{212020120011121} is an apocalyptic number.

It is an amenable number.

212020120011121 is a deficient number, since it is larger than the sum of its proper divisors (2099505094967).

212020120011121 is a wasteful number, since it uses less digits than its factorization.

212020120011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901923.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212020120011121 its reverse (121110021020212), we get a palindrome (333130141031333).

The spelling of 212020120011121 in words is "two hundred twelve trillion, twenty billion, one hundred twenty million, eleven thousand, one hundred twenty-one".