201211222220222 has 16 divisors (see below), whose sum is σ = 302130853804032. Its totient is φ = 100500938931960.

The previous prime is 201211222220213. The next prime is 201211222220249. The reversal of 201211222220222 is 222022222112102.

201211222220222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201211222220222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 520886483 + ... + 521272625.

It is an arithmetic number, because the mean of its divisors is an integer number (18883178362752).

Almost surely, 2^{201211222220222} is an apocalyptic number.

201211222220222 is a deficient number, since it is larger than the sum of its proper divisors (100919631583810).

201211222220222 is a wasteful number, since it uses less digits than its factorization.

201211222220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656543.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 201211222220222 its reverse (222022222112102), we get a palindrome (423233444332324).

The spelling of 201211222220222 in words is "two hundred one trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".