20303131111222 has 4 divisors (see below), whose sum is σ = 30454696666836. Its totient is φ = 10151565555610.

The previous prime is 20303131111217. The next prime is 20303131111243. The reversal of 20303131111222 is 22211113130302.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20303131111193 and 20303131111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5075782777804 + ... + 5075782777807.

It is an arithmetic number, because the mean of its divisors is an integer number (7613674166709).

Almost surely, 2^{20303131111222} is an apocalyptic number.

20303131111222 is a deficient number, since it is larger than the sum of its proper divisors (10151565555614).

20303131111222 is a wasteful number, since it uses less digits than its factorization.

20303131111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151565555613.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20303131111222 its reverse (22211113130302), we get a palindrome (42514244241524).

The spelling of 20303131111222 in words is "twenty trillion, three hundred three billion, one hundred thirty-one million, one hundred eleven thousand, two hundred twenty-two".