379991212021 has 8 divisors (see below), whose sum is σ = 381592096704. Its totient is φ = 378393290880.

The previous prime is 379991212001. The next prime is 379991212031. The reversal of 379991212021 is 120212199973.

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 379991212021 - 2¹³ = 379991203829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379991212001) 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, 483715 + ... + 996976.

It is an arithmetic number, because the mean of its divisors is an integer number (47699012088).

Almost surely, 2^379991212021 is an apocalyptic number.

It is an amenable number.

379991212021 is a deficient number, since it is larger than the sum of its proper divisors (1600884683).

379991212021 is a wasteful number, since it uses less digits than its factorization.

379991212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481771.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 379991212021 in words is "three hundred seventy-nine billion, nine hundred ninety-one million, two hundred twelve thousand, twenty-one".