212121101112193 has 64 divisors (see below), whose sum is σ = 277382753206272. Its totient is φ = 157415469465600.

The previous prime is 212121101112187. The next prime is 212121101112209. The reversal of 212121101112193 is 391211101121212.

It is a cyclic number.

It is not a de Polignac number, because 212121101112193 - 2¹³ = 212121101104001 is a prime.

It is a super-3 number, since 3×212121101112193³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212121111112193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 711444655 + ... + 711742747.

It is an arithmetic number, because the mean of its divisors is an integer number (4334105518848).

Almost surely, 2^{212121101112193} is an apocalyptic number.

It is an amenable number.

212121101112193 is a deficient number, since it is larger than the sum of its proper divisors (65261652094079).

212121101112193 is a wasteful number, since it uses less digits than its factorization.

212121101112193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299714.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 212121101112193 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred one million, one hundred twelve thousand, one hundred ninety-three".