121222010222000 has 80 divisors (see below), whose sum is σ = 303222228472800. Its totient is φ = 46816776339200.

The previous prime is 121222010221973. The next prime is 121222010222039. The reversal of 121222010222000 is 222010222121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 121222010222000.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1044959330 + ... + 1045075329.

It is an arithmetic number, because the mean of its divisors is an integer number (3790277855910).

Almost surely, 2^{121222010222000} is an apocalyptic number.

121222010222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121222010222000 is an abundant number, since it is smaller than the sum of its proper divisors (182000218250800).

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

121222010222000 is a wasteful number, since it uses less digits than its factorization.

121222010222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090034711 (or 2090034695 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121222010222000 its reverse (222010222121), we get a palindrome (121444020444121).

The spelling of 121222010222000 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, ten million, two hundred twenty-two thousand".