1222021301 has 4 divisors (see below), whose sum is σ = 1222092972. Its totient is φ = 1221949632.

The previous prime is 1222021289. The next prime is 1222021313. The reversal of 1222021301 is 1031202221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (1222021289) and next prime (1222021313).

It can be written as a sum of positive squares in 2 ways, for example, as 1214871025 + 7150276 = 34855^2 + 2674^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222021301 - 2¹⁰ = 1222020277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222021501) 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, 6095 + ... + 49811.

It is an arithmetic number, because the mean of its divisors is an integer number (305523243).

Almost surely, 2^1222021301 is an apocalyptic number.

It is an amenable number.

1222021301 is a deficient number, since it is larger than the sum of its proper divisors (71671).

1222021301 is an equidigital number, since it uses as much as digits as its factorization.

1222021301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71670.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1222021301 is about 34957.4212578674. The cubic root of 1222021301 is about 1069.1195193590.

Adding to 1222021301 its reverse (1031202221), we get a palindrome (2253223522).

The spelling of 1222021301 in words is "one billion, two hundred twenty-two million, twenty-one thousand, three hundred one".