222020737 has 2 divisors, whose sum is σ = 222020738. Its totient is φ = 222020736.

The previous prime is 222020713. The next prime is 222020753. The reversal of 222020737 is 737020222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148815601 + 73205136 = 12199^2 + 8556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222020737 is a prime.

It is a super-3 number, since 3×222020737³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (222020707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010368 + 111010369.

It is an arithmetic number, because the mean of its divisors is an integer number (111010369).

Almost surely, 2^222020737 is an apocalyptic number.

It is an amenable number.

222020737 is a deficient number, since it is larger than the sum of its proper divisors (1).

222020737 is an equidigital number, since it uses as much as digits as its factorization.

222020737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 222020737 is about 14900.3602976572. The cubic root of 222020737 is about 605.5237474500.

Adding to 222020737 its reverse (737020222), we get a palindrome (959040959).

The spelling of 222020737 in words is "two hundred twenty-two million, twenty thousand, seven hundred thirty-seven".