212021102123 has 8 divisors (see below), whose sum is σ = 219356417280. Its totient is φ = 204687403200.

The previous prime is 212021102093. The next prime is 212021102131. The reversal of 212021102123 is 321201120212.

212021102123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212021102123 - 2¹² = 212021098027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021102173) 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 7 ways as a sum of consecutive naturals, for example, 134090 + ... + 664847.

It is an arithmetic number, because the mean of its divisors is an integer number (27419552160).

Almost surely, 2^212021102123 is an apocalyptic number.

212021102123 is a deficient number, since it is larger than the sum of its proper divisors (7335315157).

212021102123 is an equidigital number, since it uses as much as digits as its factorization.

212021102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808117.

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

Adding to 212021102123 its reverse (321201120212), we get a palindrome (533222222335).

The spelling of 212021102123 in words is "two hundred twelve billion, twenty-one million, one hundred two thousand, one hundred twenty-three".