212010221146 has 16 divisors (see below), whose sum is σ = 331873360704. Its totient is φ = 101386636384.

The previous prime is 212010221107. The next prime is 212010221147. The reversal of 212010221146 is 641122010212.

212010221146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212010221147) 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, 288870 + ... + 712366.

It is an arithmetic number, because the mean of its divisors is an integer number (20742085044).

Almost surely, 2^212010221146 is an apocalyptic number.

212010221146 is a deficient number, since it is larger than the sum of its proper divisors (119863139558).

212010221146 is a wasteful number, since it uses less digits than its factorization.

212010221146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434405.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 212010221146 its reverse (641122010212), we get a palindrome (853132231358).

The spelling of 212010221146 in words is "two hundred twelve billion, ten million, two hundred twenty-one thousand, one hundred forty-six".