12222220302 has 32 divisors (see below), whose sum is σ = 27465674400. Its totient is φ = 4028295744.

The previous prime is 12222220291. The next prime is 12222220337. The reversal of 12222220302 is 20302222221.

12222220302 is a `hidden beast` number, since 122 + 22 + 220 + 302 = 666.

It is a super-2 number, since 2×12222220302² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266753 + ... + 1276364.

It is an arithmetic number, because the mean of its divisors is an integer number (858302325).

Almost surely, 2^12222220302 is an apocalyptic number.

12222220302 is an abundant number, since it is smaller than the sum of its proper divisors (15243454098).

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

12222220302 is a wasteful number, since it uses less digits than its factorization.

12222220302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543217 (or 2543211 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12222220302 its reverse (20302222221), we get a palindrome (32524442523).

The spelling of 12222220302 in words is "twelve billion, two hundred twenty-two million, two hundred twenty thousand, three hundred two".