212021003194 has 96 divisors (see below), whose sum is σ = 432242100864. Its totient is φ = 75327719040.

The previous prime is 212021003177. The next prime is 212021003209. The reversal of 212021003194 is 491300120212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13784092 + ... + 13799464.

It is an arithmetic number, because the mean of its divisors is an integer number (4502521884).

Almost surely, 2^212021003194 is an apocalyptic number.

212021003194 is an abundant number, since it is smaller than the sum of its proper divisors (220221097670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212021003194 is a wasteful number, since it uses less digits than its factorization.

212021003194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15572 (or 15489 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 212021003194 in words is "two hundred twelve billion, twenty-one million, three thousand, one hundred ninety-four".