201122121222110 has 32 divisors (see below), whose sum is σ = 398621652008832. Its totient is φ = 72451809170080.

The previous prime is 201122121222073. The next prime is 201122121222119. The reversal of 201122121222110 is 11222121221102.

It is a super-2 number, since 2×201122121222110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122121222119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8543833652 + ... + 8543857191.

It is an arithmetic number, because the mean of its divisors is an integer number (12456926625276).

Almost surely, 2^{201122121222110} is an apocalyptic number.

201122121222110 is a deficient number, since it is larger than the sum of its proper divisors (197499530786722).

201122121222110 is a wasteful number, since it uses less digits than its factorization.

201122121222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17087690968.

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

Adding to 201122121222110 its reverse (11222121221102), we get a palindrome (212344242443212).

The spelling of 201122121222110 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred ten".