212000122194 has 80 divisors (see below), whose sum is σ = 501606665280. Its totient is φ = 59718056160.

The previous prime is 212000122193. The next prime is 212000122231. The reversal of 212000122194 is 491221000212.

It is not an unprimeable number, because it can be changed into a prime (212000122193) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 919192 + ... + 1126460.

It is an arithmetic number, because the mean of its divisors is an integer number (6270083316).

Almost surely, 2^212000122194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212000122194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250803332640).

212000122194 is an abundant number, since it is smaller than the sum of its proper divisors (289606543086).

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

212000122194 is an equidigital number, since it uses as much as digits as its factorization.

212000122194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207373 (or 207352 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 212000122194 in words is "two hundred twelve billion, one hundred twenty-two thousand, one hundred ninety-four".