201100000001222 has 24 divisors (see below), whose sum is σ = 350899470306000. Its totient is φ = 86185593760560.

The previous prime is 201100000001213. The next prime is 201100000001267. The reversal of 201100000001222 is 222100000001102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131835572 + ... + 133352232.

It is an arithmetic number, because the mean of its divisors is an integer number (14620811262750).

Almost surely, 2^{201100000001222} is an apocalyptic number.

201100000001222 is a deficient number, since it is larger than the sum of its proper divisors (149799470304778).

201100000001222 is a wasteful number, since it uses less digits than its factorization.

201100000001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869676 (or 2869669 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201100000001222 its reverse (222100000001102), we get a palindrome (423200000002324).

The spelling of 201100000001222 in words is "two hundred one trillion, one hundred billion, one thousand, two hundred twenty-two".