101220321222 has 16 divisors (see below), whose sum is σ = 224934047280. Its totient is φ = 33740107056.

The previous prime is 101220321211. The next prime is 101220321311. The reversal of 101220321222 is 222123022101.

101220321222 is a `hidden beast` number, since 1 + 0 + 122 + 0 + 321 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 101220321195 and 101220321204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937225143 + ... + 937225250.

It is an arithmetic number, because the mean of its divisors is an integer number (14058377955).

Almost surely, 2^101220321222 is an apocalyptic number.

101220321222 is an abundant number, since it is smaller than the sum of its proper divisors (123713726058).

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

101220321222 is a wasteful number, since it uses less digits than its factorization.

101220321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874450404 (or 1874450398 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 101220321222 its reverse (222123022101), we get a palindrome (323343343323).

The spelling of 101220321222 in words is "one hundred one billion, two hundred twenty million, three hundred twenty-one thousand, two hundred twenty-two".