221233030220212 has 12 divisors (see below), whose sum is σ = 387358091467396. Its totient is φ = 110559289800960.

The previous prime is 221233030220197. The next prime is 221233030220287. The reversal of 221233030220212 is 212022030332122.

221233030220212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60125198353936 + 161107831866276 = 7754044^2 + 12692826^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14306318589 + ... + 14306334052.

Almost surely, 2^{221233030220212} is an apocalyptic number.

It is an amenable number.

221233030220212 is a deficient number, since it is larger than the sum of its proper divisors (166125061247184).

221233030220212 is a wasteful number, since it uses less digits than its factorization.

221233030220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28612654578 (or 28612654576 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 221233030220212 its reverse (212022030332122), we get a palindrome (433255060552334).

The spelling of 221233030220212 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, thirty million, two hundred twenty thousand, two hundred twelve".