1310122220 has 48 divisors (see below), whose sum is σ = 3004144416. Its totient is φ = 475968000.

The previous prime is 1310122213. The next prime is 1310122249. The reversal of 1310122220 is 222210131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1310122195 and 1310122204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323810 + ... + 327830.

It is an arithmetic number, because the mean of its divisors is an integer number (62586342).

Almost surely, 2^1310122220 is an apocalyptic number.

1310122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310122220 is an abundant number, since it is smaller than the sum of its proper divisors (1694022196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310122220 is a wasteful number, since it uses less digits than its factorization.

1310122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522 (or 5520 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1310122220 is about 36195.6105073530. The cubic root of 1310122220 is about 1094.2182085981.

Adding to 1310122220 its reverse (222210131), we get a palindrome (1532332351).

The spelling of 1310122220 in words is "one billion, three hundred ten million, one hundred twenty-two thousand, two hundred twenty".