212001220222 has 32 divisors (see below), whose sum is σ = 352057964544. Its totient is φ = 94944007200.

The previous prime is 212001220163. The next prime is 212001220231. The reversal of 212001220222 is 222022100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001220196 and 212001220205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208947 + ... + 683857.

It is an arithmetic number, because the mean of its divisors is an integer number (11001811392).

Almost surely, 2^212001220222 is an apocalyptic number.

212001220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212001220222 is a deficient number, since it is larger than the sum of its proper divisors (140056744322).

212001220222 is a wasteful number, since it uses less digits than its factorization.

212001220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475224.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212001220222 its reverse (222022100212), we get a palindrome (434023320434).

The spelling of 212001220222 in words is "two hundred twelve billion, one million, two hundred twenty thousand, two hundred twenty-two".