221002101220104 has 64 divisors (see below), whose sum is σ = 614394233856000. Its totient is φ = 73607426084160.

The previous prime is 221002101220091. The next prime is 221002101220163. The reversal of 221002101220104 is 401022101200122.

221002101220104 is a `hidden beast` number, since 221 + 0 + 0 + 210 + 1 + 220 + 10 + 4 = 666.

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

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 15 ways as a sum of consecutive naturals, for example, 415990792 + ... + 416521719.

It is an arithmetic number, because the mean of its divisors is an integer number (9599909904000).

Almost surely, 2^{221002101220104} is an apocalyptic number.

221002101220104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221002101220104 is an abundant number, since it is smaller than the sum of its proper divisors (393392132635896).

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

221002101220104 is a wasteful number, since it uses less digits than its factorization.

221002101220104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832513755 (or 832513745 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221002101220104 its reverse (401022101200122), we get a palindrome (622024202420226).

The spelling of 221002101220104 in words is "two hundred twenty-one trillion, two billion, one hundred one million, two hundred twenty thousand, one hundred four".