1222122212101 has 16 divisors (see below), whose sum is σ = 1420309094400. Its totient is φ = 1029945793968.

The previous prime is 1222122212081. The next prime is 1222122212117. The reversal of 1222122212101 is 1012122212221.

It is not a de Polignac number, because 1222122212101 - 2⁹ = 1222122211589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122213101) 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, 4491235 + ... + 4755568.

It is an arithmetic number, because the mean of its divisors is an integer number (88769318400).

Almost surely, 2^{1222122212101} is an apocalyptic number.

It is an amenable number.

1222122212101 is a deficient number, since it is larger than the sum of its proper divisors (198186882299).

1222122212101 is an equidigital number, since it uses as much as digits as its factorization.

1222122212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247128.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222122212101 its reverse (1012122212221), we get a palindrome (2234244424322).

The spelling of 1222122212101 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred one".