20212194 has 16 divisors (see below), whose sum is σ = 40469760. Its totient is φ = 6729840.

The previous prime is 20212187. The next prime is 20212223. The reversal of 20212194 is 49121202.

It is a self number, because there is not a number n which added to its sum of digits gives 20212194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7464 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (2529360).

Almost surely, 2^20212194 is an apocalyptic number.

20212194 is an abundant number, since it is smaller than the sum of its proper divisors (20257566).

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

20212194 is a wasteful number, since it uses less digits than its factorization.

20212194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20212194 is about 4495.7973708787. The cubic root of 20212194 is about 272.3983584118.

Adding to 20212194 its reverse (49121202), we get a palindrome (69333396).

The spelling of 20212194 in words is "twenty million, two hundred twelve thousand, one hundred ninety-four".