212020210020121 has 8 divisors (see below), whose sum is σ = 214653341073600. Its totient is φ = 209399587903440.

The previous prime is 212020210020103. The next prime is 212020210020133. The reversal of 212020210020121 is 121020012020212.

It is a happy number.

212020210020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212020210020121 - 2²⁹ = 212019673149209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020210020095 and 212020210020104.

It is not an unprimeable number, because it can be changed into a prime (212020210020161) 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, 3127200091 + ... + 3127267888.

It is an arithmetic number, because the mean of its divisors is an integer number (26831667634200).

Almost surely, 2^{212020210020121} is an apocalyptic number.

It is an amenable number.

212020210020121 is a deficient number, since it is larger than the sum of its proper divisors (2633131053479).

212020210020121 is a wasteful number, since it uses less digits than its factorization.

212020210020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254468399.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212020210020121 its reverse (121020012020212), we get a palindrome (333040222040333).

The spelling of 212020210020121 in words is "two hundred twelve trillion, twenty billion, two hundred ten million, twenty thousand, one hundred twenty-one".