1220102237 has 2 divisors, whose sum is σ = 1220102238. Its totient is φ = 1220102236.

The previous prime is 1220102209. The next prime is 1220102267. The reversal of 1220102237 is 7322010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848615161 + 371487076 = 29131^2 + 19274^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220102237 - 2⁶ = 1220102173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220102207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610051118 + 610051119.

It is an arithmetic number, because the mean of its divisors is an integer number (610051119).

Almost surely, 2^1220102237 is an apocalyptic number.

It is an amenable number.

1220102237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220102237 is an equidigital number, since it uses as much as digits as its factorization.

1220102237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1220102237 is about 34929.9618808839. The cubic root of 1220102237 is about 1068.5595772042.

Adding to 1220102237 its reverse (7322010221), we get a palindrome (8542112458).

The spelling of 1220102237 in words is "one billion, two hundred twenty million, one hundred two thousand, two hundred thirty-seven".