2223221401506 has 64 divisors (see below), whose sum is σ = 5157113978880. Its totient is φ = 625786499520.

The previous prime is 2223221401481. The next prime is 2223221401507. The reversal of 2223221401506 is 6051041223222.

It is a super-2 number, since 2×2223221401506² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2223221401507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3676200 + ... + 4238028.

It is an arithmetic number, because the mean of its divisors is an integer number (80579905920).

Almost surely, 2^{2223221401506} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223221401506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2578556989440).

2223221401506 is an abundant number, since it is smaller than the sum of its proper divisors (2933892577374).

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

2223221401506 is a wasteful number, since it uses less digits than its factorization.

2223221401506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563239.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 2223221401506 its reverse (6051041223222), we get a palindrome (8274262624728).

The spelling of 2223221401506 in words is "two trillion, two hundred twenty-three billion, two hundred twenty-one million, four hundred one thousand, five hundred six".