212021203101101 has 4 divisors (see below), whose sum is σ = 216532292528832. Its totient is φ = 207510113673372.

The previous prime is 212021203101047. The next prime is 212021203101121. The reversal of 212021203101101 is 101101302120212.

It is a happy number.

212021203101101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021203101101 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 212021203101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021203101121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255544713795 + ... + 2255544713888.

It is an arithmetic number, because the mean of its divisors is an integer number (54133073132208).

Almost surely, 2^{212021203101101} is an apocalyptic number.

It is an amenable number.

212021203101101 is a deficient number, since it is larger than the sum of its proper divisors (4511089427731).

212021203101101 is an equidigital number, since it uses as much as digits as its factorization.

212021203101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511089427730.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 212021203101101 its reverse (101101302120212), we get a palindrome (313122505221313).

The spelling of 212021203101101 in words is "two hundred twelve trillion, twenty-one billion, two hundred three million, one hundred one thousand, one hundred one".