1222112101 has 16 divisors (see below), whose sum is σ = 1443463168. Its totient is φ = 1012532400.

The previous prime is 1222112069. The next prime is 1222112117. The reversal of 1222112101 is 1012112221.

It is a cyclic number.

It is not a de Polignac number, because 1222112101 - 2⁵ = 1222112069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112161) 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, 212206 + ... + 217888.

It is an arithmetic number, because the mean of its divisors is an integer number (90216448).

Almost surely, 2^1222112101 is an apocalyptic number.

It is an amenable number.

1222112101 is a deficient number, since it is larger than the sum of its proper divisors (221351067).

1222112101 is an equidigital number, since it uses as much as digits as its factorization.

1222112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1222112101 is about 34958.7199565430. The cubic root of 1222112101 is about 1069.1459983432.

Adding to 1222112101 its reverse (1012112221), we get a palindrome (2234224322).

The spelling of 1222112101 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred one".