1220210013 has 32 divisors (see below), whose sum is σ = 1834301952. Its totient is φ = 715003200.

The previous prime is 1220210009. The next prime is 1220210029. The reversal of 1220210013 is 3100120221.

It is not a de Polignac number, because 1220210013 - 2² = 1220210009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220210083) 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, 195958 + ... + 202088.

It is an arithmetic number, because the mean of its divisors is an integer number (57321936).

Almost surely, 2^1220210013 is an apocalyptic number.

It is an amenable number.

1220210013 is a deficient number, since it is larger than the sum of its proper divisors (614091939).

1220210013 is a wasteful number, since it uses less digits than its factorization.

1220210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220210013 is about 34931.5045911280. The cubic root of 1220210013 is about 1068.5910395092.

Adding to 1220210013 its reverse (3100120221), we get a palindrome (4320330234).

The spelling of 1220210013 in words is "one billion, two hundred twenty million, two hundred ten thousand, thirteen".