1013122220 has 24 divisors (see below), whose sum is σ = 2320971408. Its totient is φ = 368408000.

The previous prime is 1013122219. The next prime is 1013122273. The reversal of 1013122220 is 222213101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1013122195 and 1013122204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302331 + ... + 2302770.

It is an arithmetic number, because the mean of its divisors is an integer number (96707142).

Almost surely, 2^1013122220 is an apocalyptic number.

1013122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013122220 is an abundant number, since it is smaller than the sum of its proper divisors (1307849188).

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

1013122220 is a wasteful number, since it uses less digits than its factorization.

1013122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605121 (or 4605119 counting only the distinct ones).

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

The square root of 1013122220 is about 31829.5808957642. The cubic root of 1013122220 is about 1004.3550790856.

Adding to 1013122220 its reverse (222213101), we get a palindrome (1235335321).

The spelling of 1013122220 in words is "one billion, thirteen million, one hundred twenty-two thousand, two hundred twenty".