1222045101 has 6 divisors (see below), whose sum is σ = 1765176270. Its totient is φ = 814696728.

The previous prime is 1222045081. The next prime is 1222045117. The reversal of 1222045101 is 1015402221.

It can be written as a sum of positive squares in only one way, i.e., 1214592201 + 7452900 = 34851^2 + 2730^2 .

It is not a de Polignac number, because 1222045101 - 2⁶ = 1222045037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222045151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67891386 + ... + 67891403.

It is an arithmetic number, because the mean of its divisors is an integer number (294196045).

Almost surely, 2^1222045101 is an apocalyptic number.

It is an amenable number.

1222045101 is a deficient number, since it is larger than the sum of its proper divisors (543131169).

1222045101 is a wasteful number, since it uses less digits than its factorization.

1222045101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135782795 (or 135782792 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1222045101 is about 34957.7616703358. The cubic root of 1222045101 is about 1069.1264600125.

Adding to 1222045101 its reverse (1015402221), we get a palindrome (2237447322).

The spelling of 1222045101 in words is "one billion, two hundred twenty-two million, forty-five thousand, one hundred one".