21221313332222 has 8 divisors (see below), whose sum is σ = 32141018251056. Its totient is φ = 10507640581872.

The previous prime is 21221313332159. The next prime is 21221313332231. The reversal of 21221313332222 is 22223331312212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51508041863 + ... + 51508042274.

It is an arithmetic number, because the mean of its divisors is an integer number (4017627281382).

Almost surely, 2^{21221313332222} is an apocalyptic number.

21221313332222 is a deficient number, since it is larger than the sum of its proper divisors (10919704918834).

21221313332222 is a wasteful number, since it uses less digits than its factorization.

21221313332222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103016084242.

The product of its digits is 10368, while the sum is 29.

Adding to 21221313332222 its reverse (22223331312212), we get a palindrome (43444644644434).

The spelling of 21221313332222 in words is "twenty-one trillion, two hundred twenty-one billion, three hundred thirteen million, three hundred thirty-two thousand, two hundred twenty-two".