1221830710 has 8 divisors (see below), whose sum is σ = 2199295296. Its totient is φ = 488732280.

The previous prime is 1221830707. The next prime is 1221830723. The reversal of 1221830710 is 170381221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61091526 + ... + 61091545.

It is an arithmetic number, because the mean of its divisors is an integer number (274911912).

Almost surely, 2^1221830710 is an apocalyptic number.

1221830710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221830710 is a deficient number, since it is larger than the sum of its proper divisors (977464586).

1221830710 is a wasteful number, since it uses less digits than its factorization.

1221830710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122183078.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1221830710 is about 34954.6951066663. The cubic root of 1221830710 is about 1069.0639351799.

The spelling of 1221830710 in words is "one billion, two hundred twenty-one million, eight hundred thirty thousand, seven hundred ten".