1222218030 has 32 divisors (see below), whose sum is σ = 3199989888. Its totient is φ = 296295200.

The previous prime is 1222218017. The next prime is 1222218061. The reversal of 1222218030 is 308122221.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1222217988 and 1222218006.

It is a congruent number.

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, 1851516 + ... + 1852175.

It is an arithmetic number, because the mean of its divisors is an integer number (99999684).

Almost surely, 2^1222218030 is an apocalyptic number.

1222218030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222218030 is an abundant number, since it is smaller than the sum of its proper divisors (1977771858).

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

1222218030 is a wasteful number, since it uses less digits than its factorization.

1222218030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703712.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1222218030 is about 34960.2349820478. The cubic root of 1222218030 is about 1069.1768875702.

The spelling of 1222218030 in words is "one billion, two hundred twenty-two million, two hundred eighteen thousand, thirty".