1222000101 has 56 divisors (see below), whose sum is σ = 2142979520. Its totient is φ = 681924096.

The previous prime is 1222000063. The next prime is 1222000127. The reversal of 1222000101 is 1010002221.

It is not a de Polignac number, because 1222000101 - 2⁶ = 1222000037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222000201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 216645 + ... + 222213.

Almost surely, 2^1222000101 is an apocalyptic number.

It is an amenable number.

1222000101 is a deficient number, since it is larger than the sum of its proper divisors (920979419).

1222000101 is an frugal number, since it uses more digits than its factorization.

1222000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637 (or 5622 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1222000101 is about 34957.1180305242. The cubic root of 1222000101 is about 1069.1133368523.

Adding to 1222000101 its reverse (1010002221), we get a palindrome (2232002322).

The spelling of 1222000101 in words is "one billion, two hundred twenty-two million, one hundred one", and thus it is an aban number.