1210220313 has 8 divisors (see below), whose sum is σ = 1625945376. Its totient is φ = 800654400.

The previous prime is 1210220311. The next prime is 1210220317. The reversal of 1210220313 is 3130220121.

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

It is not a de Polignac number, because 1210220313 - 2¹ = 1210220311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210220292 and 1210220301.

It is not an unprimeable number, because it can be changed into a prime (1210220311) 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, 1539328 + ... + 1540113.

It is an arithmetic number, because the mean of its divisors is an integer number (203243172).

Almost surely, 2^1210220313 is an apocalyptic number.

It is an amenable number.

1210220313 is a deficient number, since it is larger than the sum of its proper divisors (415725063).

1210220313 is a wasteful number, since it uses less digits than its factorization.

1210220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079575.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1210220313 is about 34788.2208944349. The cubic root of 1210220313 is about 1065.6669066781. Note that the first 3 decimals are identical.

Adding to 1210220313 its reverse (3130220121), we get a palindrome (4340440434).

The spelling of 1210220313 in words is "one billion, two hundred ten million, two hundred twenty thousand, three hundred thirteen".