100101221220222 has 32 divisors (see below), whose sum is σ = 226644274467360. Its totient is φ = 32737506310080.

The previous prime is 100101221220193. The next prime is 100101221220227. The reversal of 100101221220222 is 222022122101001.

It is a happy number.

100101221220222 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 0 + 1 + 221 + 220 + 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 = 100101221220195 and 100101221220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101221220227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17487981279 + ... + 17487987002.

It is an arithmetic number, because the mean of its divisors is an integer number (7082633577105).

Almost surely, 2^{100101221220222} is an apocalyptic number.

100101221220222 is an abundant number, since it is smaller than the sum of its proper divisors (126543053247138).

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

100101221220222 is a wasteful number, since it uses less digits than its factorization.

100101221220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34975968345 (or 34975968339 counting only the distinct ones).

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

Adding to 100101221220222 its reverse (222022122101001), we get a palindrome (322123343321223).

The spelling of 100101221220222 in words is "one hundred trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".