1220053215 has 8 divisors (see below), whose sum is σ = 1952085168. Its totient is φ = 650695040.

The previous prime is 1220053199. The next prime is 1220053217. The reversal of 1220053215 is 5123500221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220053215 - 2⁴ = 1220053199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220053191 and 1220053200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220053217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40668426 + ... + 40668455.

It is an arithmetic number, because the mean of its divisors is an integer number (244010646).

Almost surely, 2^1220053215 is an apocalyptic number.

1220053215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220053215 is a deficient number, since it is larger than the sum of its proper divisors (732031953).

1220053215 is an equidigital number, since it uses as much as digits as its factorization.

1220053215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81336889.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1220053215 is about 34929.2601553483. The cubic root of 1220053215 is about 1068.5452659365.

Adding to 1220053215 its reverse (5123500221), we get a palindrome (6343553436).

The spelling of 1220053215 in words is "one billion, two hundred twenty million, fifty-three thousand, two hundred fifteen".