212101232021 has 8 divisors (see below), whose sum is σ = 248313637824. Its totient is φ = 177366883680.

The previous prime is 212101231981. The next prime is 212101232027. The reversal of 212101232021 is 120232101212.

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

It is not a de Polignac number, because 212101232021 - 2⁶ = 212101231957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101232027) 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, 369514055 + ... + 369514628.

It is an arithmetic number, because the mean of its divisors is an integer number (31039204728).

Almost surely, 2^212101232021 is an apocalyptic number.

It is an amenable number.

212101232021 is a deficient number, since it is larger than the sum of its proper divisors (36212405803).

212101232021 is an equidigital number, since it uses as much as digits as its factorization.

212101232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739028731.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212101232021 its reverse (120232101212), we get a palindrome (332333333233).

The spelling of 212101232021 in words is "two hundred twelve billion, one hundred one million, two hundred thirty-two thousand, twenty-one".