212301102121021 has 8 divisors (see below), whose sum is σ = 217238617300320. Its totient is φ = 207363599680272.

The previous prime is 212301102121007. The next prime is 212301102121033. The reversal of 212301102121021 is 120121201103212.

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 212301102121021 - 2⁹ = 212301102120509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212301102121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212301102121051) 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, 36107586 + ... + 41573548.

It is an arithmetic number, because the mean of its divisors is an integer number (27154827162540).

Almost surely, 2^{212301102121021} is an apocalyptic number.

It is an amenable number.

212301102121021 is a deficient number, since it is larger than the sum of its proper divisors (4937515179299).

212301102121021 is an equidigital number, since it uses as much as digits as its factorization.

212301102121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369275.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212301102121021 its reverse (120121201103212), we get a palindrome (332422303224233).

The spelling of 212301102121021 in words is "two hundred twelve trillion, three hundred one billion, one hundred two million, one hundred twenty-one thousand, twenty-one".