212021121299 has 8 divisors (see below), whose sum is σ = 228565601712. Its totient is φ = 195510235680.

The previous prime is 212021121281. The next prime is 212021121311. The reversal of 212021121299 is 992121120212.

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 212021121299 - 2²⁰ = 212020072723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021121269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8385584 + ... + 8410829.

It is an arithmetic number, because the mean of its divisors is an integer number (28570700214).

Almost surely, 2^212021121299 is an apocalyptic number.

212021121299 is a deficient number, since it is larger than the sum of its proper divisors (16544480413).

212021121299 is a wasteful number, since it uses less digits than its factorization.

212021121299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16797397.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 212021121299 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred ninety-nine".