212021213101 has 8 divisors (see below), whose sum is σ = 221497484544. Its totient is φ = 202709746560.

The previous prime is 212021213087. The next prime is 212021213113. The reversal of 212021213101 is 101312120212.

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 212021213101 - 2⁹ = 212021212589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021213401) 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, 41198596 + ... + 41203741.

It is an arithmetic number, because the mean of its divisors is an integer number (27687185568).

Almost surely, 2^212021213101 is an apocalyptic number.

It is an amenable number.

212021213101 is a deficient number, since it is larger than the sum of its proper divisors (9476271443).

212021213101 is an equidigital number, since it uses as much as digits as its factorization.

212021213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82402451.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212021213101 its reverse (101312120212), we get a palindrome (313333333313).

The spelling of 212021213101 in words is "two hundred twelve billion, twenty-one million, two hundred thirteen thousand, one hundred one".