1223213100030 has 128 divisors (see below), whose sum is σ = 3391868995200. Its totient is φ = 313310011392.

The previous prime is 1223213100029. The next prime is 1223213100037. The reversal of 1223213100030 is 300013123221.

1223213100030 is a `hidden beast` number, since 1 + 2 + 2 + 321 + 310 + 0 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1223213099976 and 1223213100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223213100037) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1106472 + ... + 1915908.

It is an arithmetic number, because the mean of its divisors is an integer number (26498976525).

Almost surely, 2^{1223213100030} is an apocalyptic number.

1223213100030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223213100030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695934497600).

1223213100030 is an abundant number, since it is smaller than the sum of its proper divisors (2168655895170).

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

1223213100030 is a wasteful number, since it uses less digits than its factorization.

1223213100030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809675 (or 809669 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1223213100030 its reverse (300013123221), we get a palindrome (1523226223251).

The spelling of 1223213100030 in words is "one trillion, two hundred twenty-three billion, two hundred thirteen million, one hundred thousand, thirty".