222021402330 has 256 divisors, whose sum is σ = 695858688000. Its totient is φ = 43995598848.

The previous prime is 222021402301. The next prime is 222021402331. The reversal of 222021402330 is 33204120222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 222021402297 and 222021402306.

It is not an unprimeable number, because it can be changed into a prime (222021402331) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23153797 + ... + 23163383.

It is an arithmetic number, because the mean of its divisors is an integer number (2718198000).

Almost surely, 2^222021402330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222021402330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347929344000).

222021402330 is an abundant number, since it is smaller than the sum of its proper divisors (473837285670).

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

222021402330 is a wasteful number, since it uses less digits than its factorization.

222021402330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 222021402330 its reverse (33204120222), we get a palindrome (255225522552).

The spelling of 222021402330 in words is "two hundred twenty-two billion, twenty-one million, four hundred two thousand, three hundred thirty".