201222121012211 has 16 divisors (see below), whose sum is σ = 218489195836800. Its totient is φ = 184214357155200.

The previous prime is 201222121012193. The next prime is 201222121012217. The reversal of 201222121012211 is 112210121222102.

It is a cyclic number.

It is not a de Polignac number, because 201222121012211 - 2¹⁰ = 201222121011187 is a prime.

It is a super-2 number, since 2×201222121012211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201222121012217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78278315 + ... + 80808036.

It is an arithmetic number, because the mean of its divisors is an integer number (13655574739800).

Almost surely, 2^{201222121012211} is an apocalyptic number.

201222121012211 is a deficient number, since it is larger than the sum of its proper divisors (17267074824589).

201222121012211 is a wasteful number, since it uses less digits than its factorization.

201222121012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159087166.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201222121012211 its reverse (112210121222102), we get a palindrome (313432242234313).

The spelling of 201222121012211 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twenty-one million, twelve thousand, two hundred eleven".