212021023101 has 16 divisors (see below), whose sum is σ = 286856309760. Its totient is φ = 139273832880.

The previous prime is 212021023091. The next prime is 212021023141. The reversal of 212021023101 is 101320120212.

212021023101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212021023101 - 2⁶ = 212021023037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021023141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794635 + ... + 1027368.

It is an arithmetic number, because the mean of its divisors is an integer number (17928519360).

Almost surely, 2^212021023101 is an apocalyptic number.

It is an amenable number.

212021023101 is a deficient number, since it is larger than the sum of its proper divisors (74835286659).

212021023101 is a wasteful number, since it uses less digits than its factorization.

212021023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822576.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021023101 its reverse (101320120212), we get a palindrome (313341143313).

The spelling of 212021023101 in words is "two hundred twelve billion, twenty-one million, twenty-three thousand, one hundred one".