221232403213030 has 64 divisors (see below), whose sum is σ = 449459904257280. Its totient is φ = 77663717308800.

The previous prime is 221232403213009. The next prime is 221232403213079. The reversal of 221232403213030 is 30312304232122.

It is a self number, because there is not a number n which added to its sum of digits gives 221232403213030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19328185 + ... + 28566475.

It is an arithmetic number, because the mean of its divisors is an integer number (7022811004020).

Almost surely, 2^{221232403213030} is an apocalyptic number.

221232403213030 is an abundant number, since it is smaller than the sum of its proper divisors (228227501044250).

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

221232403213030 is a wasteful number, since it uses less digits than its factorization.

221232403213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245845.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 221232403213030 its reverse (30312304232122), we get a palindrome (251544707445152).

The spelling of 221232403213030 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, four hundred three million, two hundred thirteen thousand, thirty".