121021121100222 has 24 divisors (see below), whose sum is σ = 299671347486576. Its totient is φ = 34577463171456.

The previous prime is 121021121100203. The next prime is 121021121100247. The reversal of 121021121100222 is 222001121120121.

121021121100222 is a `hidden beast` number, since 1 + 21 + 0 + 211 + 211 + 0 + 0 + 222 = 666.

It is a super-3 number, since 3×121021121100222³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 = 121021121100195 and 121021121100204.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 480242543923 + ... + 480242544174.

It is an arithmetic number, because the mean of its divisors is an integer number (12486306145274).

Almost surely, 2^{121021121100222} is an apocalyptic number.

121021121100222 is an abundant number, since it is smaller than the sum of its proper divisors (178650226386354).

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

121021121100222 is a wasteful number, since it uses less digits than its factorization.

121021121100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960485088112 (or 960485088109 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121021121100222 its reverse (222001121120121), we get a palindrome (343022242220343).

The spelling of 121021121100222 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-two".