1220300193 has 32 divisors (see below), whose sum is σ = 1950048000. Its totient is φ = 664022016.

The previous prime is 1220300161. The next prime is 1220300197. The reversal of 1220300193 is 3910030221.

It is a happy number.

It is not a de Polignac number, because 1220300193 - 2⁵ = 1220300161 is a prime.

It is a super-2 number, since 2×1220300193² = 2978265122071674498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1220300197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30733 + ... + 58181.

It is an arithmetic number, because the mean of its divisors is an integer number (60939000).

Almost surely, 2^1220300193 is an apocalyptic number.

It is an amenable number.

1220300193 is a deficient number, since it is larger than the sum of its proper divisors (729747807).

1220300193 is a wasteful number, since it uses less digits than its factorization.

1220300193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1220300193 is about 34932.7953791276. The cubic root of 1220300193 is about 1068.6173637116.

The spelling of 1220300193 in words is "one billion, two hundred twenty million, three hundred thousand, one hundred ninety-three".