212021121308 has 12 divisors (see below), whose sum is σ = 371159155752. Its totient is φ = 105975648240.

The previous prime is 212021121281. The next prime is 212021121311. The reversal of 212021121308 is 803121120212.

212021121308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8714438 + ... + 8738733.

It is an arithmetic number, because the mean of its divisors is an integer number (30929929646).

Almost surely, 2^212021121308 is an apocalyptic number.

It is an amenable number.

212021121308 is a deficient number, since it is larger than the sum of its proper divisors (159138034444).

212021121308 is a wasteful number, since it uses less digits than its factorization.

212021121308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17456212 (or 17456210 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 212021121308 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, three hundred eight".