121222200012102 has 48 divisors (see below), whose sum is σ = 307149937585920. Its totient is φ = 33829451164656.

The previous prime is 121222200012077. The next prime is 121222200012103. The reversal of 121222200012102 is 201210002222121.

It is a happy number.

121222200012102 is a `hidden beast` number, since 121 + 222 + 200 + 0 + 121 + 0 + 2 = 666.

121222200012102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×121222200012102³ (a number of 43 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222200012103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11186982402 + ... + 11186993237.

It is an arithmetic number, because the mean of its divisors is an integer number (6398957033040).

Almost surely, 2^{121222200012102} is an apocalyptic number.

121222200012102 is an abundant number, since it is smaller than the sum of its proper divisors (185927737573818).

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

121222200012102 is a wasteful number, since it uses less digits than its factorization.

121222200012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22373975697 (or 22373975694 counting only the distinct ones).

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

Adding to 121222200012102 its reverse (201210002222121), we get a palindrome (322432202234223).

The spelling of 121222200012102 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred million, twelve thousand, one hundred two".