1222044101 has 4 divisors (see below), whose sum is σ = 1222120704. Its totient is φ = 1221967500.

The previous prime is 1222044077. The next prime is 1222044113. The reversal of 1222044101 is 1014402221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1222044101 - 2¹⁴ = 1222027717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222044101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222044151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325 + ... + 49626.

It is an arithmetic number, because the mean of its divisors is an integer number (305530176).

Almost surely, 2^1222044101 is an apocalyptic number.

It is an amenable number.

1222044101 is a deficient number, since it is larger than the sum of its proper divisors (76603).

1222044101 is an equidigital number, since it uses as much as digits as its factorization.

1222044101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76602.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1222044101 is about 34957.7473673576. The cubic root of 1222044101 is about 1069.1261683903.

Adding to 1222044101 its reverse (1014402221), we get a palindrome (2236446322).

The spelling of 1222044101 in words is "one billion, two hundred twenty-two million, forty-four thousand, one hundred one".