2221303212030 has 128 divisors (see below), whose sum is σ = 6432421432320. Its totient is φ = 479576401920.

The previous prime is 2221303211999. The next prime is 2221303212031. The reversal of 2221303212030 is 302123031222.

It is a happy number.

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 = 2221303211988 and 2221303212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221303212031) 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, 518640 + ... + 2170620.

It is an arithmetic number, because the mean of its divisors is an integer number (50253292440).

Almost surely, 2^{2221303212030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221303212030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3216210716160).

2221303212030 is an abundant number, since it is smaller than the sum of its proper divisors (4211118220290).

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

2221303212030 is a wasteful number, since it uses less digits than its factorization.

2221303212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652354.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2221303212030 its reverse (302123031222), we get a palindrome (2523426243252).

The spelling of 2221303212030 in words is "two trillion, two hundred twenty-one billion, three hundred three million, two hundred twelve thousand, thirty".