1212220301 has 2 divisors, whose sum is σ = 1212220302. Its totient is φ = 1212220300.

The previous prime is 1212220291. The next prime is 1212220333. The reversal of 1212220301 is 1030222121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1205895076 + 6325225 = 34726^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212220301 - 2⁶ = 1212220237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212220351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606110150 + 606110151.

It is an arithmetic number, because the mean of its divisors is an integer number (606110151).

Almost surely, 2^1212220301 is an apocalyptic number.

It is an amenable number.

1212220301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212220301 is an equidigital number, since it uses as much as digits as its factorization.

1212220301 is an evil number, because the sum of its binary digits is even.

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

The square root of 1212220301 is about 34816.9542177371. The cubic root of 1212220301 is about 1066.2536174938.

Adding to 1212220301 its reverse (1030222121), we get a palindrome (2242442422).

It can be divided in two parts, 12122 and 20301, that added together give a palindrome (32423).

The spelling of 1212220301 in words is "one billion, two hundred twelve million, two hundred twenty thousand, three hundred one".